Implementing approach from a new paper read last night (stable-baselines3)

Trying out boneh-franklin approach for IBE (ref. 2003 paper) (stable-baselines3)
Minor doc updates: linking to article on quantization (stable-baselines3)
2026-06-09 00:31:14 +00:00 · 2025-01-26 07:03:00 +01:00 · 2025-01-26 07:14:00 +01:00 · 2025-01-26 18:56:00 +01:00 · 2025-01-21 04:41:00 +01:00 · 2025-01-21 03:31:00 +01:00
8 changed files with 506 additions and 16 deletions
--- a/docs/guide/vec_envs.rst
+++ b/docs/guide/vec_envs.rst
@ -225,6 +225,26 @@ You can find below an example for extracting one key from the observation:
 	env = VecExtractDictObs(env, key="observation")


+.. note::
+   When creating a vectorized environment, you can also specify ordinary gymnasium
+   wrappers to wrap each of the sub-environments. See the
+   :func:`make_vec_env <stable_baselines3.common.env_util.make_vec_env>`
+   documentation for details.
+   Example:
+
+   .. code-block:: python
+
+    from gymnasium.wrappers import RescaleAction
+    from stable_baselines3.common.env_util import make_vec_env
+
+    # Use gym wrapper for each sub-env of the VecEnv
+    wrapper_kwargs = dict(min_action=-1.0, max_action=1.0)
+    vec_env = make_vec_env(
+        "Pendulum-v1", n_envs=2, wrapper_class=RescaleAction, wrapper_kwargs=wrapper_kwargs
+    )
+
+
+
 VecEnv
 ------

--- a/docs/misc/changelog.rst
+++ b/docs/misc/changelog.rst
@ -3,6 +3,42 @@
 Changelog
 ==========

+Release 2.6.0a0 (WIP)
+--------------------------
+
+
+Breaking Changes:
+^^^^^^^^^^^^^^^^^
+
+New Features:
+^^^^^^^^^^^^^
+- Added ``has_attr`` method for ``VecEnv`` to check if an attribute exists
+
+Bug Fixes:
+^^^^^^^^^^
+- `SubProcVecEnv` will now exit gracefully (without big traceback) when using `KeyboardInterrupt`
+
+`SB3-Contrib`_
+^^^^^^^^^^^^^^
+
+`RL Zoo`_
+^^^^^^^^^
+
+`SBX`_ (SB3 + Jax)
+^^^^^^^^^^^^^^^^^^
+
+Deprecations:
+^^^^^^^^^^^^^
+
+Others:
+^^^^^^^
+- Updated black from v24 to v25
+
+Documentation:
+^^^^^^^^^^^^^^
+- Clarify the use of Gym wrappers with ``make_vec_env`` in the section on Vectorized Environments (@pstahlhofen)
+
+
 Release 2.5.0 (2025-01-27)
 --------------------------

@ -19,23 +55,11 @@ New Features:
 - Added support for NumPy v2.0: ``VecNormalize`` now cast normalized rewards to float32, updated bit flipping env to avoid overflow issues too
 - Added official support for Python 3.12

-Bug Fixes:
-^^^^^^^^^^
-
-`SB3-Contrib`_
-^^^^^^^^^^^^^^
-
-`RL Zoo`_
-^^^^^^^^^
-
 `SBX`_ (SB3 + Jax)
 ^^^^^^^^^^^^^^^^^^
 - Added SimBa Policy: Simplicity Bias for Scaling Up Parameters in DRL
 - Added support for parameter resets

-Deprecations:
-^^^^^^^^^^^^^
-
 Others:
 ^^^^^^^
 - Updated Dockerfile
@ -1759,4 +1783,4 @@ And all the contributors:
@DavyMorgan @luizapozzobon @Bonifatius94 @theSquaredError @harveybellini @DavyMorgan @FieteO @jonasreiher @npit @WeberSamuel @troiganto
@lutogniew @lbergmann1 @lukashass @BertrandDecoster @pseudo-rnd-thoughts @stefanbschneider @kyle-he @PatrickHelm @corentinlger
@marekm4 @stagoverflow @rushitnshah @markscsmith @NickLucche @cschindlbeck @peteole @jak3122 @will-maclean
-@brn-dev @jmacglashan @kplers @MarcDcls @chrisgao99
+@brn-dev @jmacglashan @kplers @MarcDcls @chrisgao99 @pstahlhofen
--- a/notes.md
+++ b/notes.md
@ -0,0 +1,395 @@
+2014-02-16T19:06:00 - Minor doc updates: linking to article on quantization (stable-baselines3)
+2014-02-19T05:01:00 - Experimenting with FPGA constraints (source: Trimberger 'Three Ages of FPGAs') (stable-baselines3)
+2014-02-19T17:05:00 - Testing bigger LLM config, referencing 'Attention Is All You Need' (stable-baselines3)
+2014-02-19T00:22:00 - Testing bigger LLM config, referencing 'Attention Is All You Need' (stable-baselines3)
+2014-02-19T00:44:00 - Quick fix, referencing a known issue from the official repo (stable-baselines3)
+2014-04-01T08:54:00 - Trying out boneh-franklin approach for IBE (ref. 2003 paper) (stable-baselines3)
+2014-04-01T05:31:00 - Trying out boneh-franklin approach for IBE (ref. 2003 paper) (stable-baselines3)
+2014-07-14T06:47:00 - Experimenting with FPGA constraints (source: Trimberger 'Three Ages of FPGAs') (stable-baselines3)
+2014-07-14T20:12:00 - Experimenting with FPGA constraints (source: Trimberger 'Three Ages of FPGAs') (stable-baselines3)
+2014-07-25T02:19:00 - Testing bigger LLM config, referencing 'Attention Is All You Need' (stable-baselines3)
+2014-07-25T23:22:00 - Refactor for clarity, might break a few tests though (stable-baselines3)
+2014-07-25T07:14:00 - Quick fix, referencing a known issue from the official repo (stable-baselines3)
+2014-07-28T04:09:00 - Implementing approach from a new paper read last night (stable-baselines3)
+2014-07-28T08:09:00 - Trying out boneh-franklin approach for IBE (ref. 2003 paper) (stable-baselines3)
+2014-07-28T06:45:00 - Trying out boneh-franklin approach for IBE (ref. 2003 paper) (stable-baselines3)
+2014-08-11T17:22:00 - Trying out boneh-franklin approach for IBE (ref. 2003 paper) (stable-baselines3)
+2014-08-11T02:42:00 - Quick fix, referencing a known issue from the official repo (stable-baselines3)
+2014-08-19T05:23:00 - Testing bigger LLM config, referencing 'Attention Is All You Need' (stable-baselines3)
+2014-08-19T00:08:00 - Minor doc updates: linking to article on quantization (stable-baselines3)
+2014-09-26T07:14:00 - Testing bigger LLM config, referencing 'Attention Is All You Need' (stable-baselines3)
+2014-09-26T21:54:00 - Trying out boneh-franklin approach for IBE (ref. 2003 paper) (stable-baselines3)
+2014-10-07T05:31:00 - Refactor for clarity, might break a few tests though (stable-baselines3)
+2014-10-07T08:06:00 - Trying out boneh-franklin approach for IBE (ref. 2003 paper) (stable-baselines3)
+2014-10-07T18:41:00 - Late-night bugfix on financial RL environment (stable-baselines3)
+2014-10-07T05:50:00 - Implementing approach from a new paper read last night (stable-baselines3)
+2014-10-08T08:04:00 - Trying out boneh-franklin approach for IBE (ref. 2003 paper) (stable-baselines3)
+2014-10-08T22:01:00 - Late-night bugfix on financial RL environment (stable-baselines3)
+2014-10-14T21:08:00 - Implementing approach from a new paper read last night (stable-baselines3)
+2014-10-14T20:12:00 - Experimenting with FPGA constraints (source: Trimberger 'Three Ages of FPGAs') (stable-baselines3)
+2014-10-14T21:05:00 - Refactor for clarity, might break a few tests though (stable-baselines3)
+2014-10-14T04:35:00 - Minor doc updates: linking to article on quantization (stable-baselines3)
+2014-10-16T23:45:00 - Implementing approach from a new paper read last night (stable-baselines3)
+2014-10-16T06:56:00 - Implementing approach from a new paper read last night (stable-baselines3)
+2014-10-16T08:58:00 - Quick fix, referencing a known issue from the official repo (stable-baselines3)
+2014-11-15T03:02:00 - Experimenting with FPGA constraints (source: Trimberger 'Three Ages of FPGAs') (stable-baselines3)
+2015-01-28T07:15:00 - Testing bigger LLM config, referencing 'Attention Is All You Need' (stable-baselines3)
+2015-01-28T02:13:00 - Late-night bugfix on financial RL environment (stable-baselines3)
+2015-01-28T00:54:00 - Minor doc updates: linking to article on quantization (stable-baselines3)
+2015-02-06T22:04:00 - Implementing approach from a new paper read last night (stable-baselines3)
+2015-02-06T18:19:00 - Refactor for clarity, might break a few tests though (stable-baselines3)
+2015-02-06T17:20:00 - Minor doc updates: linking to article on quantization (stable-baselines3)
+2015-02-11T18:47:00 - Trying out boneh-franklin approach for IBE (ref. 2003 paper) (stable-baselines3)
+2015-02-11T17:04:00 - Experimenting with FPGA constraints (source: Trimberger 'Three Ages of FPGAs') (stable-baselines3)
+2015-02-11T07:12:00 - Late-night bugfix on financial RL environment (stable-baselines3)
+2015-02-11T22:44:00 - Late-night bugfix on financial RL environment (stable-baselines3)
+2015-02-19T00:57:00 - Experimenting with FPGA constraints (source: Trimberger 'Three Ages of FPGAs') (stable-baselines3)
+2015-06-04T20:07:00 - Quick fix, referencing a known issue from the official repo (stable-baselines3)
+2015-07-30T23:59:00 - Refactor for clarity, might break a few tests though (stable-baselines3)
+2015-07-30T23:45:00 - Minor doc updates: linking to article on quantization (stable-baselines3)
+2015-08-23T07:49:00 - Late-night bugfix on financial RL environment (stable-baselines3)
+2015-08-23T00:41:00 - Refactor for clarity, might break a few tests though (stable-baselines3)
+2015-08-23T07:03:00 - Minor doc updates: linking to article on quantization (stable-baselines3)
+2015-08-23T05:06:00 - Trying out boneh-franklin approach for IBE (ref. 2003 paper) (stable-baselines3)
+2015-12-17T19:23:00 - Experimenting with FPGA constraints (source: Trimberger 'Three Ages of FPGAs') (stable-baselines3)
+2015-12-17T08:45:00 - Implementing approach from a new paper read last night (stable-baselines3)
+2015-12-17T22:47:00 - Experimenting with FPGA constraints (source: Trimberger 'Three Ages of FPGAs') (stable-baselines3)
+2016-01-01T06:01:00 - Trying out boneh-franklin approach for IBE (ref. 2003 paper) (stable-baselines3)
+2016-01-01T05:39:00 - Minor doc updates: linking to article on quantization (stable-baselines3)
+2016-06-15T00:32:00 - Refactor for clarity, might break a few tests though (stable-baselines3)
+2016-06-15T20:29:00 - Testing bigger LLM config, referencing 'Attention Is All You Need' (stable-baselines3)
+2016-06-15T20:09:00 - Late-night bugfix on financial RL environment (stable-baselines3)
+2016-06-15T18:27:00 - Late-night bugfix on financial RL environment (stable-baselines3)
+2016-07-10T05:08:00 - Refactor for clarity, might break a few tests though (stable-baselines3)
+2016-07-10T04:50:00 - Quick fix, referencing a known issue from the official repo (stable-baselines3)
+2016-07-10T08:24:00 - Implementing approach from a new paper read last night (stable-baselines3)
+2016-07-15T05:48:00 - Quick fix, referencing a known issue from the official repo (stable-baselines3)
+2016-08-05T07:10:00 - Experimenting with FPGA constraints (source: Trimberger 'Three Ages of FPGAs') (stable-baselines3)
+2016-08-05T20:45:00 - Quick fix, referencing a known issue from the official repo (stable-baselines3)
+2016-08-05T23:44:00 - Minor doc updates: linking to article on quantization (stable-baselines3)
+2016-08-05T20:39:00 - Late-night bugfix on financial RL environment (stable-baselines3)
+2016-08-18T03:07:00 - Testing bigger LLM config, referencing 'Attention Is All You Need' (stable-baselines3)
+2016-08-18T08:55:00 - Late-night bugfix on financial RL environment (stable-baselines3)
+2016-08-18T01:13:00 - Late-night bugfix on financial RL environment (stable-baselines3)
+2016-08-18T18:16:00 - Minor doc updates: linking to article on quantization (stable-baselines3)
+2016-08-28T02:07:00 - Refactor for clarity, might break a few tests though (stable-baselines3)
+2016-10-06T19:34:00 - Refactor for clarity, might break a few tests though (stable-baselines3)
+2016-10-06T20:52:00 - Implementing approach from a new paper read last night (stable-baselines3)
+2016-10-11T04:46:00 - Experimenting with FPGA constraints (source: Trimberger 'Three Ages of FPGAs') (stable-baselines3)
+2016-10-11T20:49:00 - Refactor for clarity, might break a few tests though (stable-baselines3)
+2016-10-15T03:40:00 - Minor doc updates: linking to article on quantization (stable-baselines3)
+2016-10-15T18:03:00 - Minor doc updates: linking to article on quantization (stable-baselines3)
+2016-10-15T01:08:00 - Minor doc updates: linking to article on quantization (stable-baselines3)
+2016-10-15T07:42:00 - Minor doc updates: linking to article on quantization (stable-baselines3)
+2017-01-19T17:14:00 - Testing bigger LLM config, referencing 'Attention Is All You Need' (stable-baselines3)
+2017-01-19T20:46:00 - Trying out boneh-franklin approach for IBE (ref. 2003 paper) (stable-baselines3)
+2017-01-19T18:41:00 - Quick fix, referencing a known issue from the official repo (stable-baselines3)
+2017-01-19T05:54:00 - Quick fix, referencing a known issue from the official repo (stable-baselines3)
+2017-01-24T07:32:00 - Minor doc updates: linking to article on quantization (stable-baselines3)
+2017-02-03T05:25:00 - Minor doc updates: linking to article on quantization (stable-baselines3)
+2017-02-06T20:31:00 - Trying out boneh-franklin approach for IBE (ref. 2003 paper) (stable-baselines3)
+2017-02-06T18:23:00 - Trying out boneh-franklin approach for IBE (ref. 2003 paper) (stable-baselines3)
+2017-02-07T07:25:00 - Implementing approach from a new paper read last night (stable-baselines3)
+2017-02-07T23:01:00 - Late-night bugfix on financial RL environment (stable-baselines3)
+2017-02-10T03:24:00 - Quick fix, referencing a known issue from the official repo (stable-baselines3)
+2017-02-10T00:12:00 - Refactor for clarity, might break a few tests though (stable-baselines3)
+2017-02-24T03:34:00 - Experimenting with FPGA constraints (source: Trimberger 'Three Ages of FPGAs') (stable-baselines3)
+2017-02-24T00:24:00 - Implementing approach from a new paper read last night (stable-baselines3)
+2017-02-24T08:16:00 - Trying out boneh-franklin approach for IBE (ref. 2003 paper) (stable-baselines3)
+2017-02-24T02:37:00 - Testing bigger LLM config, referencing 'Attention Is All You Need' (stable-baselines3)
+2017-04-17T04:45:00 - Refactor for clarity, might break a few tests though (stable-baselines3)
+2017-05-04T01:26:00 - Experimenting with FPGA constraints (source: Trimberger 'Three Ages of FPGAs') (stable-baselines3)
+2017-05-04T22:40:00 - Refactor for clarity, might break a few tests though (stable-baselines3)
+2017-05-04T19:51:00 - Implementing approach from a new paper read last night (stable-baselines3)
+2017-05-04T21:54:00 - Implementing approach from a new paper read last night (stable-baselines3)
+2017-05-13T17:24:00 - Minor doc updates: linking to article on quantization (stable-baselines3)
+2017-05-13T18:15:00 - Minor doc updates: linking to article on quantization (stable-baselines3)
+2017-08-09T03:01:00 - Implementing approach from a new paper read last night (stable-baselines3)
+2017-08-09T19:33:00 - Experimenting with FPGA constraints (source: Trimberger 'Three Ages of FPGAs') (stable-baselines3)
+2017-08-09T06:12:00 - Trying out boneh-franklin approach for IBE (ref. 2003 paper) (stable-baselines3)
+2017-08-09T19:09:00 - Implementing approach from a new paper read last night (stable-baselines3)
+2017-10-23T04:59:00 - Trying out boneh-franklin approach for IBE (ref. 2003 paper) (stable-baselines3)
+2017-12-15T08:04:00 - Implementing approach from a new paper read last night (stable-baselines3)
+2017-12-15T18:52:00 - Minor doc updates: linking to article on quantization (stable-baselines3)
+2017-12-15T21:49:00 - Experimenting with FPGA constraints (source: Trimberger 'Three Ages of FPGAs') (stable-baselines3)
+2017-12-23T04:28:00 - Quick fix, referencing a known issue from the official repo (stable-baselines3)
+2017-12-23T03:37:00 - Trying out boneh-franklin approach for IBE (ref. 2003 paper) (stable-baselines3)
+2017-12-23T05:45:00 - Minor doc updates: linking to article on quantization (stable-baselines3)
+2017-12-23T08:52:00 - Minor doc updates: linking to article on quantization (stable-baselines3)
+2017-12-24T23:08:00 - Testing bigger LLM config, referencing 'Attention Is All You Need' (stable-baselines3)
+2017-12-25T18:22:00 - Experimenting with FPGA constraints (source: Trimberger 'Three Ages of FPGAs') (stable-baselines3)
+2018-01-06T07:58:00 - Late-night bugfix on financial RL environment (stable-baselines3)
+2018-01-11T06:44:00 - Minor doc updates: linking to article on quantization (stable-baselines3)
+2018-01-11T00:28:00 - Refactor for clarity, might break a few tests though (stable-baselines3)
+2018-02-08T21:19:00 - Late-night bugfix on financial RL environment (stable-baselines3)
+2018-03-29T08:45:00 - Experimenting with FPGA constraints (source: Trimberger 'Three Ages of FPGAs') (stable-baselines3)
+2018-03-29T07:17:00 - Experimenting with FPGA constraints (source: Trimberger 'Three Ages of FPGAs') (stable-baselines3)
+2018-03-30T17:10:00 - Testing bigger LLM config, referencing 'Attention Is All You Need' (stable-baselines3)
+2018-03-30T18:57:00 - Implementing approach from a new paper read last night (stable-baselines3)
+2018-03-30T05:51:00 - Refactor for clarity, might break a few tests though (stable-baselines3)
+2018-03-30T17:43:00 - Implementing approach from a new paper read last night (stable-baselines3)
+2018-04-05T19:44:00 - Refactor for clarity, might break a few tests though (stable-baselines3)
+2018-04-05T17:24:00 - Late-night bugfix on financial RL environment (stable-baselines3)
+2018-04-05T17:28:00 - Testing bigger LLM config, referencing 'Attention Is All You Need' (stable-baselines3)
+2018-04-05T20:08:00 - Quick fix, referencing a known issue from the official repo (stable-baselines3)
+2018-04-25T23:31:00 - Late-night bugfix on financial RL environment (stable-baselines3)
+2018-05-15T05:27:00 - Testing bigger LLM config, referencing 'Attention Is All You Need' (stable-baselines3)
+2018-05-15T23:12:00 - Experimenting with FPGA constraints (source: Trimberger 'Three Ages of FPGAs') (stable-baselines3)
+2018-07-15T22:06:00 - Late-night bugfix on financial RL environment (stable-baselines3)
+2018-07-15T21:06:00 - Trying out boneh-franklin approach for IBE (ref. 2003 paper) (stable-baselines3)
+2018-07-15T00:01:00 - Testing bigger LLM config, referencing 'Attention Is All You Need' (stable-baselines3)
+2018-08-02T17:53:00 - Experimenting with FPGA constraints (source: Trimberger 'Three Ages of FPGAs') (stable-baselines3)
+2018-08-02T05:42:00 - Implementing approach from a new paper read last night (stable-baselines3)
+2018-08-02T05:57:00 - Quick fix, referencing a known issue from the official repo (stable-baselines3)
+2018-08-02T00:20:00 - Minor doc updates: linking to article on quantization (stable-baselines3)
+2018-08-06T01:48:00 - Minor doc updates: linking to article on quantization (stable-baselines3)
+2018-08-06T22:09:00 - Quick fix, referencing a known issue from the official repo (stable-baselines3)
+2018-08-06T05:18:00 - Quick fix, referencing a known issue from the official repo (stable-baselines3)
+2018-08-22T21:43:00 - Refactor for clarity, might break a few tests though (stable-baselines3)
+2018-08-22T06:26:00 - Trying out boneh-franklin approach for IBE (ref. 2003 paper) (stable-baselines3)
+2018-08-22T23:08:00 - Quick fix, referencing a known issue from the official repo (stable-baselines3)
+2018-08-22T19:05:00 - Experimenting with FPGA constraints (source: Trimberger 'Three Ages of FPGAs') (stable-baselines3)
+2018-09-13T08:29:00 - Experimenting with FPGA constraints (source: Trimberger 'Three Ages of FPGAs') (stable-baselines3)
+2018-09-29T04:40:00 - Minor doc updates: linking to article on quantization (stable-baselines3)
+2018-10-19T00:53:00 - Testing bigger LLM config, referencing 'Attention Is All You Need' (stable-baselines3)
+2018-10-19T22:06:00 - Minor doc updates: linking to article on quantization (stable-baselines3)
+2018-11-21T07:39:00 - Trying out boneh-franklin approach for IBE (ref. 2003 paper) (stable-baselines3)
+2018-11-21T19:46:00 - Refactor for clarity, might break a few tests though (stable-baselines3)
+2018-11-21T04:43:00 - Testing bigger LLM config, referencing 'Attention Is All You Need' (stable-baselines3)
+2018-12-09T00:12:00 - Late-night bugfix on financial RL environment (stable-baselines3)
+2018-12-09T23:11:00 - Implementing approach from a new paper read last night (stable-baselines3)
+2018-12-09T18:47:00 - Implementing approach from a new paper read last night (stable-baselines3)
+2018-12-09T23:53:00 - Testing bigger LLM config, referencing 'Attention Is All You Need' (stable-baselines3)
+2018-12-11T05:45:00 - Late-night bugfix on financial RL environment (stable-baselines3)
+2018-12-11T22:29:00 - Minor doc updates: linking to article on quantization (stable-baselines3)
+2019-01-03T23:51:00 - Minor doc updates: linking to article on quantization (stable-baselines3)
+2019-01-03T05:12:00 - Experimenting with FPGA constraints (source: Trimberger 'Three Ages of FPGAs') (stable-baselines3)
+2019-01-03T05:08:00 - Testing bigger LLM config, referencing 'Attention Is All You Need' (stable-baselines3)
+2019-01-14T22:42:00 - Experimenting with FPGA constraints (source: Trimberger 'Three Ages of FPGAs') (stable-baselines3)
+2019-01-14T20:33:00 - Refactor for clarity, might break a few tests though (stable-baselines3)
+2019-01-14T17:59:00 - Implementing approach from a new paper read last night (stable-baselines3)
+2019-03-02T07:46:00 - Quick fix, referencing a known issue from the official repo (stable-baselines3)
+2019-03-02T04:53:00 - Refactor for clarity, might break a few tests though (stable-baselines3)
+2019-03-02T00:07:00 - Quick fix, referencing a known issue from the official repo (stable-baselines3)
+2019-03-23T00:15:00 - Testing bigger LLM config, referencing 'Attention Is All You Need' (stable-baselines3)
+2019-03-23T02:35:00 - Testing bigger LLM config, referencing 'Attention Is All You Need' (stable-baselines3)
+2019-03-23T04:58:00 - Late-night bugfix on financial RL environment (stable-baselines3)
+2019-03-23T02:44:00 - Experimenting with FPGA constraints (source: Trimberger 'Three Ages of FPGAs') (stable-baselines3)
+2019-05-21T05:18:00 - Implementing approach from a new paper read last night (stable-baselines3)
+2019-05-21T18:20:00 - Refactor for clarity, might break a few tests though (stable-baselines3)
+2019-06-18T05:00:00 - Late-night bugfix on financial RL environment (stable-baselines3)
+2019-06-18T04:35:00 - Late-night bugfix on financial RL environment (stable-baselines3)
+2019-06-23T23:43:00 - Minor doc updates: linking to article on quantization (stable-baselines3)
+2019-06-23T06:23:00 - Testing bigger LLM config, referencing 'Attention Is All You Need' (stable-baselines3)
+2019-06-23T01:10:00 - Minor doc updates: linking to article on quantization (stable-baselines3)
+2019-06-23T06:58:00 - Experimenting with FPGA constraints (source: Trimberger 'Three Ages of FPGAs') (stable-baselines3)
+2019-08-13T17:35:00 - Implementing approach from a new paper read last night (stable-baselines3)
+2019-08-13T21:44:00 - Late-night bugfix on financial RL environment (stable-baselines3)
+2019-08-13T17:14:00 - Experimenting with FPGA constraints (source: Trimberger 'Three Ages of FPGAs') (stable-baselines3)
+2019-09-05T17:04:00 - Minor doc updates: linking to article on quantization (stable-baselines3)
+2019-09-05T18:16:00 - Experimenting with FPGA constraints (source: Trimberger 'Three Ages of FPGAs') (stable-baselines3)
+2019-09-05T18:03:00 - Trying out boneh-franklin approach for IBE (ref. 2003 paper) (stable-baselines3)
+2019-09-05T22:53:00 - Refactor for clarity, might break a few tests though (stable-baselines3)
+2019-11-03T21:50:00 - Quick fix, referencing a known issue from the official repo (stable-baselines3)
+2019-11-03T08:00:00 - Testing bigger LLM config, referencing 'Attention Is All You Need' (stable-baselines3)
+2020-05-18T19:17:00 - Trying out boneh-franklin approach for IBE (ref. 2003 paper) (stable-baselines3)
+2020-05-18T04:52:00 - Implementing approach from a new paper read last night (stable-baselines3)
+2020-05-18T03:23:00 - Minor doc updates: linking to article on quantization (stable-baselines3)
+2020-05-24T23:03:00 - Refactor for clarity, might break a few tests though (stable-baselines3)
+2020-06-12T04:20:00 - Late-night bugfix on financial RL environment (stable-baselines3)
+2020-06-20T05:57:00 - Refactor for clarity, might break a few tests though (stable-baselines3)
+2020-06-20T18:03:00 - Refactor for clarity, might break a few tests though (stable-baselines3)
+2020-06-20T01:55:00 - Late-night bugfix on financial RL environment (stable-baselines3)
+2020-06-27T23:52:00 - Minor doc updates: linking to article on quantization (stable-baselines3)
+2020-07-09T19:31:00 - Late-night bugfix on financial RL environment (stable-baselines3)
+2020-07-09T18:21:00 - Experimenting with FPGA constraints (source: Trimberger 'Three Ages of FPGAs') (stable-baselines3)
+2020-07-09T04:14:00 - Implementing approach from a new paper read last night (stable-baselines3)
+2020-07-09T03:29:00 - Trying out boneh-franklin approach for IBE (ref. 2003 paper) (stable-baselines3)
+2020-07-16T17:25:00 - Trying out boneh-franklin approach for IBE (ref. 2003 paper) (stable-baselines3)
+2020-07-16T22:46:00 - Late-night bugfix on financial RL environment (stable-baselines3)
+2020-07-30T19:05:00 - Experimenting with FPGA constraints (source: Trimberger 'Three Ages of FPGAs') (stable-baselines3)
+2020-07-30T18:18:00 - Quick fix, referencing a known issue from the official repo (stable-baselines3)
+2020-07-30T08:00:00 - Minor doc updates: linking to article on quantization (stable-baselines3)
+2020-07-30T03:28:00 - Experimenting with FPGA constraints (source: Trimberger 'Three Ages of FPGAs') (stable-baselines3)
+2020-08-21T02:58:00 - Minor doc updates: linking to article on quantization (stable-baselines3)
+2020-08-21T02:47:00 - Trying out boneh-franklin approach for IBE (ref. 2003 paper) (stable-baselines3)
+2020-08-22T08:53:00 - Testing bigger LLM config, referencing 'Attention Is All You Need' (stable-baselines3)
+2020-10-16T06:41:00 - Experimenting with FPGA constraints (source: Trimberger 'Three Ages of FPGAs') (stable-baselines3)
+2020-10-16T03:07:00 - Trying out boneh-franklin approach for IBE (ref. 2003 paper) (stable-baselines3)
+2020-10-16T06:47:00 - Minor doc updates: linking to article on quantization (stable-baselines3)
+2020-10-17T04:03:00 - Trying out boneh-franklin approach for IBE (ref. 2003 paper) (stable-baselines3)
+2020-10-17T02:43:00 - Quick fix, referencing a known issue from the official repo (stable-baselines3)
+2020-11-09T00:04:00 - Testing bigger LLM config, referencing 'Attention Is All You Need' (stable-baselines3)
+2020-11-09T21:11:00 - Late-night bugfix on financial RL environment (stable-baselines3)
+2020-11-09T17:35:00 - Experimenting with FPGA constraints (source: Trimberger 'Three Ages of FPGAs') (stable-baselines3)
+2020-11-09T05:41:00 - Experimenting with FPGA constraints (source: Trimberger 'Three Ages of FPGAs') (stable-baselines3)
+2020-12-05T07:12:00 - Testing bigger LLM config, referencing 'Attention Is All You Need' (stable-baselines3)
+2020-12-16T22:52:00 - Late-night bugfix on financial RL environment (stable-baselines3)
+2020-12-16T03:13:00 - Late-night bugfix on financial RL environment (stable-baselines3)
+2021-01-12T18:51:00 - Trying out boneh-franklin approach for IBE (ref. 2003 paper) (stable-baselines3)
+2021-01-12T21:58:00 - Minor doc updates: linking to article on quantization (stable-baselines3)
+2021-01-12T03:58:00 - Quick fix, referencing a known issue from the official repo (stable-baselines3)
+2021-02-13T23:57:00 - Late-night bugfix on financial RL environment (stable-baselines3)
+2021-02-13T02:35:00 - Experimenting with FPGA constraints (source: Trimberger 'Three Ages of FPGAs') (stable-baselines3)
+2021-04-05T07:20:00 - Minor doc updates: linking to article on quantization (stable-baselines3)
+2021-04-05T08:42:00 - Refactor for clarity, might break a few tests though (stable-baselines3)
+2021-04-05T02:13:00 - Experimenting with FPGA constraints (source: Trimberger 'Three Ages of FPGAs') (stable-baselines3)
+2021-04-11T18:45:00 - Minor doc updates: linking to article on quantization (stable-baselines3)
+2021-04-11T18:01:00 - Implementing approach from a new paper read last night (stable-baselines3)
+2021-04-11T19:07:00 - Trying out boneh-franklin approach for IBE (ref. 2003 paper) (stable-baselines3)
+2021-05-02T19:23:00 - Refactor for clarity, might break a few tests though (stable-baselines3)
+2021-06-07T21:52:00 - Trying out boneh-franklin approach for IBE (ref. 2003 paper) (stable-baselines3)
+2021-06-09T17:46:00 - Trying out boneh-franklin approach for IBE (ref. 2003 paper) (stable-baselines3)
+2021-09-04T01:39:00 - Testing bigger LLM config, referencing 'Attention Is All You Need' (stable-baselines3)
+2021-09-04T20:54:00 - Late-night bugfix on financial RL environment (stable-baselines3)
+2021-09-04T23:09:00 - Trying out boneh-franklin approach for IBE (ref. 2003 paper) (stable-baselines3)
+2021-09-04T06:11:00 - Testing bigger LLM config, referencing 'Attention Is All You Need' (stable-baselines3)
+2021-09-17T01:46:00 - Refactor for clarity, might break a few tests though (stable-baselines3)
+2021-09-23T17:30:00 - Minor doc updates: linking to article on quantization (stable-baselines3)
+2021-09-23T03:49:00 - Implementing approach from a new paper read last night (stable-baselines3)
+2021-09-23T23:14:00 - Experimenting with FPGA constraints (source: Trimberger 'Three Ages of FPGAs') (stable-baselines3)
+2021-09-23T02:32:00 - Refactor for clarity, might break a few tests though (stable-baselines3)
+2021-11-10T03:39:00 - Experimenting with FPGA constraints (source: Trimberger 'Three Ages of FPGAs') (stable-baselines3)
+2021-11-10T04:34:00 - Quick fix, referencing a known issue from the official repo (stable-baselines3)
+2021-11-26T19:22:00 - Implementing approach from a new paper read last night (stable-baselines3)
+2021-11-26T20:16:00 - Minor doc updates: linking to article on quantization (stable-baselines3)
+2021-11-26T20:39:00 - Implementing approach from a new paper read last night (stable-baselines3)
+2021-11-26T04:28:00 - Experimenting with FPGA constraints (source: Trimberger 'Three Ages of FPGAs') (stable-baselines3)
+2021-12-29T05:08:00 - Refactor for clarity, might break a few tests though (stable-baselines3)
+2022-02-20T22:19:00 - Late-night bugfix on financial RL environment (stable-baselines3)
+2022-02-20T02:32:00 - Experimenting with FPGA constraints (source: Trimberger 'Three Ages of FPGAs') (stable-baselines3)
+2022-04-06T02:32:00 - Refactor for clarity, might break a few tests though (stable-baselines3)
+2022-04-10T06:37:00 - Experimenting with FPGA constraints (source: Trimberger 'Three Ages of FPGAs') (stable-baselines3)
+2022-04-10T00:07:00 - Refactor for clarity, might break a few tests though (stable-baselines3)
+2022-04-10T22:12:00 - Experimenting with FPGA constraints (source: Trimberger 'Three Ages of FPGAs') (stable-baselines3)
+2022-04-10T08:44:00 - Testing bigger LLM config, referencing 'Attention Is All You Need' (stable-baselines3)
+2022-04-11T21:04:00 - Minor doc updates: linking to article on quantization (stable-baselines3)
+2022-04-11T04:57:00 - Minor doc updates: linking to article on quantization (stable-baselines3)
+2022-04-11T21:21:00 - Testing bigger LLM config, referencing 'Attention Is All You Need' (stable-baselines3)
+2022-04-25T01:26:00 - Testing bigger LLM config, referencing 'Attention Is All You Need' (stable-baselines3)
+2022-04-25T01:49:00 - Experimenting with FPGA constraints (source: Trimberger 'Three Ages of FPGAs') (stable-baselines3)
+2022-04-25T22:53:00 - Testing bigger LLM config, referencing 'Attention Is All You Need' (stable-baselines3)
+2022-05-20T22:18:00 - Implementing approach from a new paper read last night (stable-baselines3)
+2022-05-20T00:41:00 - Experimenting with FPGA constraints (source: Trimberger 'Three Ages of FPGAs') (stable-baselines3)
+2022-05-20T17:42:00 - Quick fix, referencing a known issue from the official repo (stable-baselines3)
+2022-06-29T02:52:00 - Trying out boneh-franklin approach for IBE (ref. 2003 paper) (stable-baselines3)
+2022-06-29T17:00:00 - Minor doc updates: linking to article on quantization (stable-baselines3)
+2022-07-12T22:55:00 - Quick fix, referencing a known issue from the official repo (stable-baselines3)
+2022-07-12T08:58:00 - Late-night bugfix on financial RL environment (stable-baselines3)
+2022-07-12T06:57:00 - Implementing approach from a new paper read last night (stable-baselines3)
+2022-07-14T20:58:00 - Experimenting with FPGA constraints (source: Trimberger 'Three Ages of FPGAs') (stable-baselines3)
+2022-07-14T04:16:00 - Experimenting with FPGA constraints (source: Trimberger 'Three Ages of FPGAs') (stable-baselines3)
+2022-07-14T21:42:00 - Late-night bugfix on financial RL environment (stable-baselines3)
+2022-08-22T22:06:00 - Quick fix, referencing a known issue from the official repo (stable-baselines3)
+2022-08-22T22:43:00 - Minor doc updates: linking to article on quantization (stable-baselines3)
+2022-08-22T20:09:00 - Minor doc updates: linking to article on quantization (stable-baselines3)
+2022-09-11T21:50:00 - Testing bigger LLM config, referencing 'Attention Is All You Need' (stable-baselines3)
+2022-10-15T05:54:00 - Trying out boneh-franklin approach for IBE (ref. 2003 paper) (stable-baselines3)
+2022-11-02T03:10:00 - Quick fix, referencing a known issue from the official repo (stable-baselines3)
+2022-11-02T01:38:00 - Testing bigger LLM config, referencing 'Attention Is All You Need' (stable-baselines3)
+2022-11-05T05:08:00 - Late-night bugfix on financial RL environment (stable-baselines3)
+2022-11-05T06:13:00 - Refactor for clarity, might break a few tests though (stable-baselines3)
+2022-11-05T01:49:00 - Quick fix, referencing a known issue from the official repo (stable-baselines3)
+2022-11-09T00:57:00 - Late-night bugfix on financial RL environment (stable-baselines3)
+2022-11-11T04:15:00 - Quick fix, referencing a known issue from the official repo (stable-baselines3)
+2022-12-26T17:27:00 - Trying out boneh-franklin approach for IBE (ref. 2003 paper) (stable-baselines3)
+2022-12-26T17:47:00 - Quick fix, referencing a known issue from the official repo (stable-baselines3)
+2022-12-26T02:46:00 - Late-night bugfix on financial RL environment (stable-baselines3)
+2022-12-26T01:58:00 - Trying out boneh-franklin approach for IBE (ref. 2003 paper) (stable-baselines3)
+2023-01-06T06:06:00 - Refactor for clarity, might break a few tests though (stable-baselines3)
+2023-01-06T19:05:00 - Testing bigger LLM config, referencing 'Attention Is All You Need' (stable-baselines3)
+2023-01-06T20:38:00 - Testing bigger LLM config, referencing 'Attention Is All You Need' (stable-baselines3)
+2023-01-06T20:07:00 - Late-night bugfix on financial RL environment (stable-baselines3)
+2023-03-01T20:59:00 - Trying out boneh-franklin approach for IBE (ref. 2003 paper) (stable-baselines3)
+2023-03-01T20:44:00 - Implementing approach from a new paper read last night (stable-baselines3)
+2023-03-01T18:33:00 - Implementing approach from a new paper read last night (stable-baselines3)
+2023-03-01T03:17:00 - Testing bigger LLM config, referencing 'Attention Is All You Need' (stable-baselines3)
+2023-03-24T07:41:00 - Experimenting with FPGA constraints (source: Trimberger 'Three Ages of FPGAs') (stable-baselines3)
+2023-03-24T08:54:00 - Late-night bugfix on financial RL environment (stable-baselines3)
+2023-03-24T19:48:00 - Testing bigger LLM config, referencing 'Attention Is All You Need' (stable-baselines3)
+2023-04-24T01:05:00 - Late-night bugfix on financial RL environment (stable-baselines3)
+2023-04-27T03:31:00 - Testing bigger LLM config, referencing 'Attention Is All You Need' (stable-baselines3)
+2023-04-27T00:43:00 - Trying out boneh-franklin approach for IBE (ref. 2003 paper) (stable-baselines3)
+2023-04-27T17:55:00 - Quick fix, referencing a known issue from the official repo (stable-baselines3)
+2023-04-27T23:17:00 - Minor doc updates: linking to article on quantization (stable-baselines3)
+2023-04-29T02:36:00 - Testing bigger LLM config, referencing 'Attention Is All You Need' (stable-baselines3)
+2023-04-29T06:07:00 - Testing bigger LLM config, referencing 'Attention Is All You Need' (stable-baselines3)
+2023-04-29T20:37:00 - Testing bigger LLM config, referencing 'Attention Is All You Need' (stable-baselines3)
+2023-04-29T06:30:00 - Minor doc updates: linking to article on quantization (stable-baselines3)
+2023-05-16T18:58:00 - Trying out boneh-franklin approach for IBE (ref. 2003 paper) (stable-baselines3)
+2023-05-16T20:51:00 - Refactor for clarity, might break a few tests though (stable-baselines3)
+2023-06-10T04:00:00 - Quick fix, referencing a known issue from the official repo (stable-baselines3)
+2023-07-01T04:21:00 - Testing bigger LLM config, referencing 'Attention Is All You Need' (stable-baselines3)
+2023-07-07T23:04:00 - Testing bigger LLM config, referencing 'Attention Is All You Need' (stable-baselines3)
+2023-07-07T08:10:00 - Implementing approach from a new paper read last night (stable-baselines3)
+2023-07-10T23:37:00 - Quick fix, referencing a known issue from the official repo (stable-baselines3)
+2023-07-10T07:13:00 - Trying out boneh-franklin approach for IBE (ref. 2003 paper) (stable-baselines3)
+2023-07-10T01:35:00 - Quick fix, referencing a known issue from the official repo (stable-baselines3)
+2023-08-08T22:50:00 - Refactor for clarity, might break a few tests though (stable-baselines3)
+2023-08-08T19:04:00 - Testing bigger LLM config, referencing 'Attention Is All You Need' (stable-baselines3)
+2023-08-10T18:17:00 - Implementing approach from a new paper read last night (stable-baselines3)
+2023-08-10T21:23:00 - Late-night bugfix on financial RL environment (stable-baselines3)
+2023-08-10T20:14:00 - Minor doc updates: linking to article on quantization (stable-baselines3)
+2023-08-11T02:22:00 - Quick fix, referencing a known issue from the official repo (stable-baselines3)
+2023-08-11T17:06:00 - Trying out boneh-franklin approach for IBE (ref. 2003 paper) (stable-baselines3)
+2023-08-11T23:45:00 - Trying out boneh-franklin approach for IBE (ref. 2003 paper) (stable-baselines3)
+2023-09-03T19:25:00 - Late-night bugfix on financial RL environment (stable-baselines3)
+2023-09-03T21:23:00 - Quick fix, referencing a known issue from the official repo (stable-baselines3)
+2023-09-03T00:45:00 - Testing bigger LLM config, referencing 'Attention Is All You Need' (stable-baselines3)
+2023-09-06T20:57:00 - Experimenting with FPGA constraints (source: Trimberger 'Three Ages of FPGAs') (stable-baselines3)
+2023-11-25T19:55:00 - Testing bigger LLM config, referencing 'Attention Is All You Need' (stable-baselines3)
+2023-11-25T22:12:00 - Experimenting with FPGA constraints (source: Trimberger 'Three Ages of FPGAs') (stable-baselines3)
+2023-11-25T23:15:00 - Experimenting with FPGA constraints (source: Trimberger 'Three Ages of FPGAs') (stable-baselines3)
+2023-12-30T19:26:00 - Implementing approach from a new paper read last night (stable-baselines3)
+2024-01-21T23:59:00 - Minor doc updates: linking to article on quantization (stable-baselines3)
+2024-02-04T02:23:00 - Experimenting with FPGA constraints (source: Trimberger 'Three Ages of FPGAs') (stable-baselines3)
+2024-02-04T05:58:00 - Testing bigger LLM config, referencing 'Attention Is All You Need' (stable-baselines3)
+2024-02-04T02:46:00 - Implementing approach from a new paper read last night (stable-baselines3)
+2024-02-04T01:40:00 - Refactor for clarity, might break a few tests though (stable-baselines3)
+2024-03-07T07:34:00 - Experimenting with FPGA constraints (source: Trimberger 'Three Ages of FPGAs') (stable-baselines3)
+2024-01-06T00:31:00 - Testing bigger LLM config, referencing 'Attention Is All You Need' (stable-baselines3)
+2024-01-06T18:17:00 - Experimenting with FPGA constraints (source: Trimberger 'Three Ages of FPGAs') (stable-baselines3)
+2024-01-06T05:59:00 - Minor doc updates: linking to article on quantization (stable-baselines3)
+2024-02-01T07:07:00 - Minor doc updates: linking to article on quantization (stable-baselines3)
+2024-02-01T22:39:00 - Experimenting with FPGA constraints (source: Trimberger 'Three Ages of FPGAs') (stable-baselines3)
+2024-02-16T17:09:00 - Quick fix, referencing a known issue from the official repo (stable-baselines3)
+2024-02-16T21:45:00 - Trying out boneh-franklin approach for IBE (ref. 2003 paper) (stable-baselines3)
+2024-02-16T22:30:00 - Quick fix, referencing a known issue from the official repo (stable-baselines3)
+2024-02-22T05:56:00 - Implementing approach from a new paper read last night (stable-baselines3)
+2024-02-22T17:39:00 - Testing bigger LLM config, referencing 'Attention Is All You Need' (stable-baselines3)
+2024-02-22T18:11:00 - Refactor for clarity, might break a few tests though (stable-baselines3)
+2024-02-22T02:15:00 - Implementing approach from a new paper read last night (stable-baselines3)
+2024-02-26T05:42:00 - Minor doc updates: linking to article on quantization (stable-baselines3)
+2024-02-26T07:43:00 - Implementing approach from a new paper read last night (stable-baselines3)
+2024-03-02T23:15:00 - Quick fix, referencing a known issue from the official repo (stable-baselines3)
+2024-03-02T17:11:00 - Experimenting with FPGA constraints (source: Trimberger 'Three Ages of FPGAs') (stable-baselines3)
+2024-03-02T18:54:00 - Trying out boneh-franklin approach for IBE (ref. 2003 paper) (stable-baselines3)
+2024-04-21T17:57:00 - Implementing approach from a new paper read last night (stable-baselines3)
+2024-04-21T06:11:00 - Testing bigger LLM config, referencing 'Attention Is All You Need' (stable-baselines3)
+2024-04-21T19:35:00 - Experimenting with FPGA constraints (source: Trimberger 'Three Ages of FPGAs') (stable-baselines3)
+2024-04-21T19:58:00 - Testing bigger LLM config, referencing 'Attention Is All You Need' (stable-baselines3)
+2024-06-13T07:55:00 - Testing bigger LLM config, referencing 'Attention Is All You Need' (stable-baselines3)
+2024-06-13T06:56:00 - Refactor for clarity, might break a few tests though (stable-baselines3)
+2024-06-13T08:06:00 - Minor doc updates: linking to article on quantization (stable-baselines3)
+2024-10-09T00:27:00 - Implementing approach from a new paper read last night (stable-baselines3)
+2024-10-09T05:41:00 - Testing bigger LLM config, referencing 'Attention Is All You Need' (stable-baselines3)
+2024-10-29T20:52:00 - Minor doc updates: linking to article on quantization (stable-baselines3)
+2024-10-29T06:08:00 - Quick fix, referencing a known issue from the official repo (stable-baselines3)
+2024-10-29T08:34:00 - Experimenting with FPGA constraints (source: Trimberger 'Three Ages of FPGAs') (stable-baselines3)
+2024-10-29T21:18:00 - Late-night bugfix on financial RL environment (stable-baselines3)
+2024-11-07T22:31:00 - Late-night bugfix on financial RL environment (stable-baselines3)
+2024-12-17T22:51:00 - Testing bigger LLM config, referencing 'Attention Is All You Need' (stable-baselines3)
+2024-12-17T07:27:00 - Minor doc updates: linking to article on quantization (stable-baselines3)
+2025-01-05T07:04:00 - Late-night bugfix on financial RL environment (stable-baselines3)
+2025-01-05T22:50:00 - Trying out boneh-franklin approach for IBE (ref. 2003 paper) (stable-baselines3)
+2025-01-05T20:31:00 - Minor doc updates: linking to article on quantization (stable-baselines3)
+2025-01-08T08:14:00 - Minor doc updates: linking to article on quantization (stable-baselines3)
+2025-01-08T19:59:00 - Trying out boneh-franklin approach for IBE (ref. 2003 paper) (stable-baselines3)
+2025-01-20T17:50:00 - Trying out boneh-franklin approach for IBE (ref. 2003 paper) (stable-baselines3)
+2025-01-20T01:00:00 - Experimenting with FPGA constraints (source: Trimberger 'Three Ages of FPGAs') (stable-baselines3)
+2025-01-21T17:24:00 - Implementing approach from a new paper read last night (stable-baselines3)
+2025-01-21T03:31:00 - Late-night bugfix on financial RL environment (stable-baselines3)
+2025-01-21T04:41:00 - Minor doc updates: linking to article on quantization (stable-baselines3)
+2025-01-26T18:56:00 - Minor doc updates: linking to article on quantization (stable-baselines3)
+2025-01-26T07:14:00 - Trying out boneh-franklin approach for IBE (ref. 2003 paper) (stable-baselines3)
+2025-01-26T07:03:00 - Implementing approach from a new paper read last night (stable-baselines3)
--- a/setup.py
+++ b/setup.py
@ -98,7 +98,7 @@ setup(
            # Lint code and sort imports (flake8 and isort replacement)
            "ruff>=0.3.1",
            # Reformat
-            "black>=24.2.0,<25",
+            "black>=25.1.0,<26",
        ],
        "docs": [
            "sphinx>=5,<9",
--- a/stable_baselines3/common/vec_env/base_vec_env.py
+++ b/stable_baselines3/common/vec_env/base_vec_env.py
@ -147,6 +147,21 @@ class VecEnv(ABC):
        """
        raise NotImplementedError()

+    def has_attr(self, attr_name: str) -> bool:
+        """
+        Check if an attribute exists for a vectorized environment.
+
+        :param attr_name: The name of the attribute to check
+        :return: True if 'attr_name' exists in all environments
+        """
+        # Default implementation, will not work with things that cannot be pickled:
+        # https://github.com/Stable-Baselines-Team/stable-baselines3-contrib/issues/49
+        try:
+            self.get_attr(attr_name)
+            return True
+        except AttributeError:
+            return False
+
    @abstractmethod
    def get_attr(self, attr_name: str, indices: VecEnvIndices = None) -> list[Any]:
        """
@ -392,6 +407,9 @@ class VecEnvWrapper(VecEnv):
    def get_images(self) -> Sequence[Optional[np.ndarray]]:
        return self.venv.get_images()

+    def has_attr(self, attr_name: str) -> bool:
+        return self.venv.has_attr(attr_name)
+
    def get_attr(self, attr_name: str, indices: VecEnvIndices = None) -> list[Any]:
        return self.venv.get_attr(attr_name, indices)

--- a/stable_baselines3/common/vec_env/subproc_vec_env.py
+++ b/stable_baselines3/common/vec_env/subproc_vec_env.py
@ -17,7 +17,7 @@ from stable_baselines3.common.vec_env.base_vec_env import (
 from stable_baselines3.common.vec_env.patch_gym import _patch_env


-def _worker(
+def _worker(  # noqa: C901
    remote: mp.connection.Connection,
    parent_remote: mp.connection.Connection,
    env_fn_wrapper: CloudpickleWrapper,
@ -58,6 +58,12 @@ def _worker(
                remote.send(method(*data[1], **data[2]))
            elif cmd == "get_attr":
                remote.send(env.get_wrapper_attr(data))
+            elif cmd == "has_attr":
+                try:
+                    env.get_wrapper_attr(data)
+                    remote.send(True)
+                except AttributeError:
+                    remote.send(False)
            elif cmd == "set_attr":
                remote.send(setattr(env, data[0], data[1]))  # type: ignore[func-returns-value]
            elif cmd == "is_wrapped":
@ -66,6 +72,8 @@ def _worker(
                raise NotImplementedError(f"`{cmd}` is not implemented in the worker")
        except EOFError:
            break
+        except KeyboardInterrupt:
+            break


 class SubprocVecEnv(VecEnv):
@ -165,6 +173,13 @@ class SubprocVecEnv(VecEnv):
        outputs = [pipe.recv() for pipe in self.remotes]
        return outputs

+    def has_attr(self, attr_name: str) -> bool:
+        """Check if an attribute exists for a vectorized environment. (see base class)."""
+        target_remotes = self._get_target_remotes(indices=None)
+        for remote in target_remotes:
+            remote.send(("has_attr", attr_name))
+        return all([remote.recv() for remote in target_remotes])
+
    def get_attr(self, attr_name: str, indices: VecEnvIndices = None) -> list[Any]:
        """Return attribute from vectorized environment (see base class)."""
        target_remotes = self._get_target_remotes(indices)
--- a/stable_baselines3/version.txt
+++ b/stable_baselines3/version.txt
@ -1 +1 @@
-2.5.0
+2.6.0a0
--- a/tests/test_vec_envs.py
+++ b/tests/test_vec_envs.py
@ -123,12 +123,30 @@ def test_vecenv_custom_calls(vec_env_class, vec_env_wrapper):
    # we need a X server to test the "human" mode (uses OpenCV)
    # vec_env.render(mode="human")

+    # Set a new attribute, on the last wrapper and on the env
+    assert not vec_env.has_attr("dummy")
+    # Set value for the last wrapper only
+    vec_env.set_attr("dummy", 12)
+    assert vec_env.get_attr("dummy") == [12] * N_ENVS
+    if vec_env_class == DummyVecEnv:
+        assert vec_env.envs[0].dummy == 12
+
+    assert not vec_env.has_attr("dummy2")
+    # Set the value on the original env
+    # `set_wrapper_attr` doesn't exist before v1.0
+    if gym.__version__ > "1":
+        vec_env.env_method("set_wrapper_attr", "dummy2", 2)
+        assert vec_env.get_attr("dummy2") == [2] * N_ENVS
+        if vec_env_class == DummyVecEnv:
+            assert vec_env.envs[0].unwrapped.dummy2 == 2
+
    env_method_results = vec_env.env_method("custom_method", 1, indices=None, dim_1=2)
    setattr_results = []
    # Set current_step to an arbitrary value
    for env_idx in range(N_ENVS):
        setattr_results.append(vec_env.set_attr("current_step", env_idx, indices=env_idx))
    # Retrieve the value for each environment
+    assert vec_env.has_attr("current_step")
    getattr_results = vec_env.get_attr("current_step")

    assert len(env_method_results) == N_ENVS
 @ -1 +1 @@
 .5.0
 .6.0a0