diff --git a/readthedocs/misc/changelog.rst b/readthedocs/misc/changelog.rst
index 639af35e..c25dca5f 100644
--- a/readthedocs/misc/changelog.rst
+++ b/readthedocs/misc/changelog.rst
@@ -13,6 +13,38 @@ it can take advantage of new goodies!
 
 .. contents:: List of All Versions
 
+New layer (v1.40)
+=================
+
++------------------------+
+| Scheme layer used: 201 |
++------------------------+
+
+`View new and changed raw API methods <https://diff.telethon.dev/?from=199&to=201>`__.
+
+Additions
+~~~~~~~~~
+
+* ``send_as`` and ``effect`` added to ``send_message`` and related methods.
+* :tl:`MessageMediaGeoLive` is now recognized for auto-input conversion.
+
+Enhancements
+~~~~~~~~~~~~
+
+* Improved wording when using a likely unintended session file.
+* Improved behaviour for matching Markdown links.
+* A truly clean update-state is now fetched upon login. This was most notably important for bots.
+* Time offset is now updated more reliably after connecting. This should fix legitimate "message too old/new" issues.
+
+Bug fixes
+~~~~~~~~~
+
+* :tl:`ChannelParticipantLeft` is now skipped in ``iter_participants``.
+* ``spoiler`` flag was lost on :tl:`MessageMediaPhoto` auto-input conversion.
+* :tl:`KeyboardButtonCopy` is now recognized as an inline button.
+* Downloading web-documents should now work again. Note that this still fetches the file from the original server.
+
+
 New layer (v1.39)
 =================
 
diff --git a/telethon/version.py b/telethon/version.py
index 75010b87..8f75b142 100644
--- a/telethon/version.py
+++ b/telethon/version.py
@@ -1,3 +1,3 @@
 # Versions should comply with PEP440.
 # This line is parsed in setup.py:
-__version__ = '1.39.0'
+__version__ = '1.40.0'