diff --git a/.circleci/config.yml b/.circleci/config.yml
index 6ae3a4223..ec3848b04 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -156,7 +156,7 @@ workflows:
       - dockerhubuploadrelease:
           filters:
             tags:
-              only: /^v[0-9].[0-9]+.[0-9]+(.[0-9]+)?/
+              only: /v[0-9].[0-9]+.[0-9]+.*/
             branches:
               ignore: /.*/
       - dockerhubuploadlatest:
diff --git a/CHANGES.md b/CHANGES.md
index 45d3cdb13..048b9f95d 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,11 +1,91 @@
+Synapse 0.33.6 (2018-10-04)
+===========================
+
+Internal Changes
+----------------
+
+- Pin to prometheus_client<0.4 to avoid renaming all of our metrics ([\#4002](https://github.com/matrix-org/synapse/issues/4002))
+
+
+Synapse 0.33.6rc1 (2018-10-03)
+==============================
+
+Features
+--------
+
+- Adding the ability to change MAX_UPLOAD_SIZE for the docker container variables. ([\#3883](https://github.com/matrix-org/synapse/issues/3883))
+- Report "python_version" in the phone home stats ([\#3894](https://github.com/matrix-org/synapse/issues/3894))
+- Always LL ourselves if we're in a room ([\#3916](https://github.com/matrix-org/synapse/issues/3916))
+- Include eventid in log lines when processing incoming federation transactions ([\#3959](https://github.com/matrix-org/synapse/issues/3959))
+- Remove spurious check which made 'localhost' servers not work ([\#3964](https://github.com/matrix-org/synapse/issues/3964))
+
+
+Bugfixes
+--------
+
+- Fix problem when playing media from Chrome using direct URL (thanks @remjey!) ([\#3578](https://github.com/matrix-org/synapse/issues/3578))
+- support registering regular users non-interactively with register_new_matrix_user script ([\#3836](https://github.com/matrix-org/synapse/issues/3836))
+- Fix broken invite email links for self hosted riots ([\#3868](https://github.com/matrix-org/synapse/issues/3868))
+- Don't ratelimit autojoins ([\#3879](https://github.com/matrix-org/synapse/issues/3879))
+- Fix 500 error when deleting unknown room alias ([\#3889](https://github.com/matrix-org/synapse/issues/3889))
+- Fix some b'abcd' noise in logs and metrics ([\#3892](https://github.com/matrix-org/synapse/issues/3892), [\#3895](https://github.com/matrix-org/synapse/issues/3895))
+- When we join a room, always try the server we used for the alias lookup first, to avoid unresponsive and out-of-date servers. ([\#3899](https://github.com/matrix-org/synapse/issues/3899))
+- Fix incorrect server-name indication for outgoing federation requests ([\#3907](https://github.com/matrix-org/synapse/issues/3907))
+- Fix adding client IPs to the database failing on Python 3. ([\#3908](https://github.com/matrix-org/synapse/issues/3908))
+- Fix bug where things occaisonally were not being timed out correctly. ([\#3910](https://github.com/matrix-org/synapse/issues/3910))
+- Fix bug where outbound federation would stop talking to some servers when using workers ([\#3914](https://github.com/matrix-org/synapse/issues/3914))
+- Fix some instances of ExpiringCache not expiring cache items ([\#3932](https://github.com/matrix-org/synapse/issues/3932), [\#3980](https://github.com/matrix-org/synapse/issues/3980))
+- Fix out-of-bounds error when LLing yourself ([\#3936](https://github.com/matrix-org/synapse/issues/3936))
+- Sending server notices regarding user consent now works on Python 3. ([\#3938](https://github.com/matrix-org/synapse/issues/3938))
+- Fix exceptions from metrics handler ([\#3956](https://github.com/matrix-org/synapse/issues/3956))
+- Fix error message for events with m.room.create missing from auth_events ([\#3960](https://github.com/matrix-org/synapse/issues/3960))
+- Fix errors due to concurrent monthly_active_user upserts ([\#3961](https://github.com/matrix-org/synapse/issues/3961))
+- Fix exceptions when processing incoming events over federation ([\#3968](https://github.com/matrix-org/synapse/issues/3968))
+- Replaced all occurences of e.message with str(e). Contributed by Schnuffle ([\#3970](https://github.com/matrix-org/synapse/issues/3970))
+- Fix lazy loaded sync in the presence of rejected state events ([\#3986](https://github.com/matrix-org/synapse/issues/3986))
+- Fix error when logging incomplete HTTP requests ([\#3990](https://github.com/matrix-org/synapse/issues/3990))
+
+
+Internal Changes
+----------------
+
+- Unit tests can now be run under PostgreSQL in Docker using ``test_postgresql.sh``. ([\#3699](https://github.com/matrix-org/synapse/issues/3699))
+- Speed up calculation of typing updates for replication ([\#3794](https://github.com/matrix-org/synapse/issues/3794))
+- Remove documentation regarding installation on Cygwin, the use of WSL is recommended instead. ([\#3873](https://github.com/matrix-org/synapse/issues/3873))
+- Fix typo in README, synaspse -> synapse ([\#3897](https://github.com/matrix-org/synapse/issues/3897))
+- Increase the timeout when filling missing events in federation requests ([\#3903](https://github.com/matrix-org/synapse/issues/3903))
+- Improve the logging when handling a federation transaction ([\#3904](https://github.com/matrix-org/synapse/issues/3904), [\#3966](https://github.com/matrix-org/synapse/issues/3966))
+- Improve logging of outbound federation requests ([\#3906](https://github.com/matrix-org/synapse/issues/3906), [\#3909](https://github.com/matrix-org/synapse/issues/3909))
+- Fix the docker image building on python 3 ([\#3911](https://github.com/matrix-org/synapse/issues/3911))
+- Add a regression test for logging failed HTTP requests on Python 3. ([\#3912](https://github.com/matrix-org/synapse/issues/3912))
+- Comments and interface cleanup for on_receive_pdu ([\#3924](https://github.com/matrix-org/synapse/issues/3924))
+- Fix spurious exceptions when remote http client closes conncetion ([\#3925](https://github.com/matrix-org/synapse/issues/3925))
+- Log exceptions thrown by background tasks ([\#3927](https://github.com/matrix-org/synapse/issues/3927))
+- Add a cache to get_destination_retry_timings ([\#3933](https://github.com/matrix-org/synapse/issues/3933), [\#3991](https://github.com/matrix-org/synapse/issues/3991))
+- Automate pushes to docker hub ([\#3946](https://github.com/matrix-org/synapse/issues/3946))
+- Require attrs 16.0.0 or later ([\#3947](https://github.com/matrix-org/synapse/issues/3947))
+- Fix incompatibility with python3 on alpine ([\#3948](https://github.com/matrix-org/synapse/issues/3948))
+- Run the test suite on the oldest supported versions of our dependencies in CI. ([\#3952](https://github.com/matrix-org/synapse/issues/3952))
+- CircleCI now only runs merged jobs on PRs, and commit jobs on develop, master, and release branches. ([\#3957](https://github.com/matrix-org/synapse/issues/3957))
+- Fix docstrings and add tests for state store methods ([\#3958](https://github.com/matrix-org/synapse/issues/3958))
+- fix docstring for FederationClient.get_state_for_room ([\#3963](https://github.com/matrix-org/synapse/issues/3963))
+- Run notify_app_services as a bg process ([\#3965](https://github.com/matrix-org/synapse/issues/3965))
+- Clarifications in FederationHandler ([\#3967](https://github.com/matrix-org/synapse/issues/3967))
+- Further reduce the docker image size ([\#3972](https://github.com/matrix-org/synapse/issues/3972))
+- Build py3 docker images for docker hub too ([\#3976](https://github.com/matrix-org/synapse/issues/3976))
+- Updated the installation instructions to point to the matrix-synapse package on PyPI. ([\#3985](https://github.com/matrix-org/synapse/issues/3985))
+- Disable USE_FROZEN_DICTS for unittests by default. ([\#3987](https://github.com/matrix-org/synapse/issues/3987))
+- Remove unused Jenkins and development related files from the repo. ([\#3988](https://github.com/matrix-org/synapse/issues/3988))
+- Improve stacktraces in certain exceptions in the logs ([\#3989](https://github.com/matrix-org/synapse/issues/3989))
+
+
 Synapse 0.33.5.1 (2018-09-25)
 =============================
 
 Internal Changes
 ----------------
 
-- Fix incompatibility with older Twisted version in tests. Thanks 
-  @OlegGirko! ([\#3940](https://github.com/matrix-org/synapse/issues/3940))
+- Fix incompatibility with older Twisted version in tests. Thanks @OlegGirko! ([\#3940](https://github.com/matrix-org/synapse/issues/3940))
 
 
 Synapse 0.33.5 (2018-09-24)
diff --git a/changelog.d/3578.bugfix b/changelog.d/3578.bugfix
deleted file mode 100644
index 9c52b6fa7..000000000
--- a/changelog.d/3578.bugfix
+++ /dev/null
@@ -1 +0,0 @@
-Fix problem when playing media from Chrome using direct URL (thanks @remjey!)
diff --git a/changelog.d/3699.misc b/changelog.d/3699.misc
deleted file mode 100644
index 437efbd98..000000000
--- a/changelog.d/3699.misc
+++ /dev/null
@@ -1,2 +0,0 @@
-Unit tests can now be run under PostgreSQL in Docker using 
-``test_postgresql.sh``.
diff --git a/changelog.d/3794.misc b/changelog.d/3794.misc
deleted file mode 100644
index 6b98c9609..000000000
--- a/changelog.d/3794.misc
+++ /dev/null
@@ -1 +0,0 @@
-Speed up calculation of typing updates for replication
diff --git a/changelog.d/3836.bugfix b/changelog.d/3836.bugfix
deleted file mode 100644
index add49fbec..000000000
--- a/changelog.d/3836.bugfix
+++ /dev/null
@@ -1 +0,0 @@
-support registering regular users non-interactively with register_new_matrix_user script
\ No newline at end of file
diff --git a/changelog.d/3868.bugfix b/changelog.d/3868.bugfix
deleted file mode 100644
index 99da8389a..000000000
--- a/changelog.d/3868.bugfix
+++ /dev/null
@@ -1 +0,0 @@
-Fix broken invite email links for self hosted riots 
diff --git a/changelog.d/3873.misc b/changelog.d/3873.misc
deleted file mode 100644
index 8104b5c08..000000000
--- a/changelog.d/3873.misc
+++ /dev/null
@@ -1,2 +0,0 @@
-Remove documentation regarding installation on Cygwin, the use of WSL is 
-recommended instead.
diff --git a/changelog.d/3879.bugfix b/changelog.d/3879.bugfix
deleted file mode 100644
index 82cb2a8eb..000000000
--- a/changelog.d/3879.bugfix
+++ /dev/null
@@ -1 +0,0 @@
-Don't ratelimit autojoins
diff --git a/changelog.d/3883.feature b/changelog.d/3883.feature
deleted file mode 100644
index c11e5c530..000000000
--- a/changelog.d/3883.feature
+++ /dev/null
@@ -1 +0,0 @@
-Adding the ability to change MAX_UPLOAD_SIZE for the docker container variables.
\ No newline at end of file
diff --git a/changelog.d/3889.bugfix b/changelog.d/3889.bugfix
deleted file mode 100644
index e97642598..000000000
--- a/changelog.d/3889.bugfix
+++ /dev/null
@@ -1 +0,0 @@
-Fix 500 error when deleting unknown room alias
diff --git a/changelog.d/3892.bugfix b/changelog.d/3892.bugfix
deleted file mode 100644
index 8b30afab0..000000000
--- a/changelog.d/3892.bugfix
+++ /dev/null
@@ -1 +0,0 @@
-Fix some b'abcd' noise in logs and metrics
diff --git a/changelog.d/3894.feature b/changelog.d/3894.feature
deleted file mode 100644
index 1ed0cccdb..000000000
--- a/changelog.d/3894.feature
+++ /dev/null
@@ -1 +0,0 @@
-Report "python_version" in the phone home stats
diff --git a/changelog.d/3895.bugfix b/changelog.d/3895.bugfix
deleted file mode 100644
index 8b30afab0..000000000
--- a/changelog.d/3895.bugfix
+++ /dev/null
@@ -1 +0,0 @@
-Fix some b'abcd' noise in logs and metrics
diff --git a/changelog.d/3897.misc b/changelog.d/3897.misc
deleted file mode 100644
index 87e7ac796..000000000
--- a/changelog.d/3897.misc
+++ /dev/null
@@ -1 +0,0 @@
-Fix typo in README, synaspse -> synapse
\ No newline at end of file
diff --git a/changelog.d/3899.bugfix b/changelog.d/3899.bugfix
deleted file mode 100644
index 5120e3a82..000000000
--- a/changelog.d/3899.bugfix
+++ /dev/null
@@ -1 +0,0 @@
-When we join a room, always try the server we used for the alias lookup first, to avoid unresponsive and out-of-date servers.
diff --git a/changelog.d/3903.misc b/changelog.d/3903.misc
deleted file mode 100644
index 49b64bf33..000000000
--- a/changelog.d/3903.misc
+++ /dev/null
@@ -1 +0,0 @@
-Increase the timeout when filling missing events in federation requests
\ No newline at end of file
diff --git a/changelog.d/3904.misc b/changelog.d/3904.misc
deleted file mode 100644
index 1e3c8e170..000000000
--- a/changelog.d/3904.misc
+++ /dev/null
@@ -1 +0,0 @@
-Improve the logging when handling a federation transaction
\ No newline at end of file
diff --git a/changelog.d/3906.misc b/changelog.d/3906.misc
deleted file mode 100644
index 11709186d..000000000
--- a/changelog.d/3906.misc
+++ /dev/null
@@ -1 +0,0 @@
-Improve logging of outbound federation requests
\ No newline at end of file
diff --git a/changelog.d/3907.bugfix b/changelog.d/3907.bugfix
deleted file mode 100644
index 45e010c05..000000000
--- a/changelog.d/3907.bugfix
+++ /dev/null
@@ -1 +0,0 @@
-Fix incorrect server-name indication for outgoing federation requests
\ No newline at end of file
diff --git a/changelog.d/3908.bugfix b/changelog.d/3908.bugfix
deleted file mode 100644
index 518aee6c4..000000000
--- a/changelog.d/3908.bugfix
+++ /dev/null
@@ -1 +0,0 @@
-Fix adding client IPs to the database failing on Python 3.
\ No newline at end of file
diff --git a/changelog.d/3909.misc b/changelog.d/3909.misc
deleted file mode 100644
index 11709186d..000000000
--- a/changelog.d/3909.misc
+++ /dev/null
@@ -1 +0,0 @@
-Improve logging of outbound federation requests
\ No newline at end of file
diff --git a/changelog.d/3910.bugfix b/changelog.d/3910.bugfix
deleted file mode 100644
index 22ec2adc3..000000000
--- a/changelog.d/3910.bugfix
+++ /dev/null
@@ -1 +0,0 @@
-Fix bug where things occaisonally were not being timed out correctly.
diff --git a/changelog.d/3911.misc b/changelog.d/3911.misc
deleted file mode 100644
index e31311d52..000000000
--- a/changelog.d/3911.misc
+++ /dev/null
@@ -1 +0,0 @@
-Fix the docker image building on python 3
diff --git a/changelog.d/3912.misc b/changelog.d/3912.misc
deleted file mode 100644
index 87d73697e..000000000
--- a/changelog.d/3912.misc
+++ /dev/null
@@ -1 +0,0 @@
-Add a regression test for logging failed HTTP requests on Python 3.
\ No newline at end of file
diff --git a/changelog.d/3914.bugfix b/changelog.d/3914.bugfix
deleted file mode 100644
index 27e6bad59..000000000
--- a/changelog.d/3914.bugfix
+++ /dev/null
@@ -1 +0,0 @@
-Fix bug where outbound federation would stop talking to some servers when using workers
diff --git a/changelog.d/3916.feature b/changelog.d/3916.feature
deleted file mode 100644
index 13282d992..000000000
--- a/changelog.d/3916.feature
+++ /dev/null
@@ -1 +0,0 @@
-Always LL ourselves if we're in a room
diff --git a/changelog.d/3924.misc b/changelog.d/3924.misc
deleted file mode 100644
index 8d010e0bd..000000000
--- a/changelog.d/3924.misc
+++ /dev/null
@@ -1 +0,0 @@
-Comments and interface cleanup for on_receive_pdu
\ No newline at end of file
diff --git a/changelog.d/3925.misc b/changelog.d/3925.misc
deleted file mode 100644
index 3e41f78ff..000000000
--- a/changelog.d/3925.misc
+++ /dev/null
@@ -1 +0,0 @@
-Fix spurious exceptions when remote http client closes conncetion
diff --git a/changelog.d/3927.misc b/changelog.d/3927.misc
deleted file mode 100644
index 4bd8e25f6..000000000
--- a/changelog.d/3927.misc
+++ /dev/null
@@ -1 +0,0 @@
-Log exceptions thrown by background tasks
diff --git a/changelog.d/3932.bugfix b/changelog.d/3932.bugfix
deleted file mode 100644
index 7578414ed..000000000
--- a/changelog.d/3932.bugfix
+++ /dev/null
@@ -1 +0,0 @@
-Fix some instances of ExpiringCache not expiring cache items
diff --git a/changelog.d/3933.misc b/changelog.d/3933.misc
deleted file mode 100644
index 6545871f5..000000000
--- a/changelog.d/3933.misc
+++ /dev/null
@@ -1 +0,0 @@
-Add a cache to get_destination_retry_timings
diff --git a/changelog.d/3936.bugfix b/changelog.d/3936.bugfix
deleted file mode 100644
index 49b02b9e2..000000000
--- a/changelog.d/3936.bugfix
+++ /dev/null
@@ -1 +0,0 @@
-Fix out-of-bounds error when LLing yourself
diff --git a/changelog.d/3938.bugfix b/changelog.d/3938.bugfix
deleted file mode 100644
index 01ccca21a..000000000
--- a/changelog.d/3938.bugfix
+++ /dev/null
@@ -1 +0,0 @@
-Sending server notices regarding user consent now works on Python 3.
diff --git a/changelog.d/3946.misc b/changelog.d/3946.misc
deleted file mode 100644
index 803857a29..000000000
--- a/changelog.d/3946.misc
+++ /dev/null
@@ -1 +0,0 @@
-Automate pushes to docker hub
diff --git a/changelog.d/3947.misc b/changelog.d/3947.misc
deleted file mode 100644
index 5a9a22bed..000000000
--- a/changelog.d/3947.misc
+++ /dev/null
@@ -1 +0,0 @@
-Require attrs 16.0.0 or later
diff --git a/changelog.d/3948.misc b/changelog.d/3948.misc
deleted file mode 100644
index a93edbd1c..000000000
--- a/changelog.d/3948.misc
+++ /dev/null
@@ -1 +0,0 @@
-Fix incompatibility with python3 on alpine
\ No newline at end of file
diff --git a/changelog.d/3952.misc b/changelog.d/3952.misc
deleted file mode 100644
index 015e4a43e..000000000
--- a/changelog.d/3952.misc
+++ /dev/null
@@ -1 +0,0 @@
-Run the test suite on the oldest supported versions of our dependencies in CI.
\ No newline at end of file
diff --git a/changelog.d/3956.bugfix b/changelog.d/3956.bugfix
deleted file mode 100644
index b0828c9fc..000000000
--- a/changelog.d/3956.bugfix
+++ /dev/null
@@ -1 +0,0 @@
-Fix exceptions from metrics handler
\ No newline at end of file
diff --git a/changelog.d/3957.misc b/changelog.d/3957.misc
deleted file mode 100644
index 69d647f11..000000000
--- a/changelog.d/3957.misc
+++ /dev/null
@@ -1 +0,0 @@
-CircleCI now only runs merged jobs on PRs, and commit jobs on develop, master, and release branches.
diff --git a/changelog.d/3958.misc b/changelog.d/3958.misc
deleted file mode 100644
index 5931d06dc..000000000
--- a/changelog.d/3958.misc
+++ /dev/null
@@ -1 +0,0 @@
-Fix docstrings and add tests for state store methods
diff --git a/changelog.d/3959.feature b/changelog.d/3959.feature
deleted file mode 100644
index b3a4f37a8..000000000
--- a/changelog.d/3959.feature
+++ /dev/null
@@ -1 +0,0 @@
-Include eventid in log lines when processing incoming federation transactions
\ No newline at end of file
diff --git a/changelog.d/3960.bugfix b/changelog.d/3960.bugfix
deleted file mode 100644
index a01dc60df..000000000
--- a/changelog.d/3960.bugfix
+++ /dev/null
@@ -1 +0,0 @@
-Fix error message for events with m.room.create missing from auth_events
\ No newline at end of file
diff --git a/changelog.d/3961.bugfix b/changelog.d/3961.bugfix
deleted file mode 100644
index e46b5834a..000000000
--- a/changelog.d/3961.bugfix
+++ /dev/null
@@ -1 +0,0 @@
-Fix errors due to concurrent monthly_active_user upserts 
diff --git a/changelog.d/3963.misc b/changelog.d/3963.misc
deleted file mode 100644
index f1e0eaf18..000000000
--- a/changelog.d/3963.misc
+++ /dev/null
@@ -1 +0,0 @@
-fix docstring for FederationClient.get_state_for_room
diff --git a/changelog.d/3964.feature b/changelog.d/3964.feature
deleted file mode 100644
index 599222eb5..000000000
--- a/changelog.d/3964.feature
+++ /dev/null
@@ -1 +0,0 @@
-Remove spurious check which made 'localhost' servers not work
diff --git a/changelog.d/3965.misc b/changelog.d/3965.misc
deleted file mode 100644
index e7e4a9c5a..000000000
--- a/changelog.d/3965.misc
+++ /dev/null
@@ -1 +0,0 @@
-Run notify_app_services as a bg process
diff --git a/changelog.d/3966.misc b/changelog.d/3966.misc
deleted file mode 100644
index 1e3c8e170..000000000
--- a/changelog.d/3966.misc
+++ /dev/null
@@ -1 +0,0 @@
-Improve the logging when handling a federation transaction
\ No newline at end of file
diff --git a/changelog.d/3967.misc b/changelog.d/3967.misc
deleted file mode 100644
index dc808aec7..000000000
--- a/changelog.d/3967.misc
+++ /dev/null
@@ -1 +0,0 @@
-Clarifications in FederationHandler
diff --git a/changelog.d/3968.bugfix b/changelog.d/3968.bugfix
deleted file mode 100644
index 18d43cd64..000000000
--- a/changelog.d/3968.bugfix
+++ /dev/null
@@ -1 +0,0 @@
-Fix exceptions when processing incoming events over federation
\ No newline at end of file
diff --git a/changelog.d/3970.bugfix b/changelog.d/3970.bugfix
deleted file mode 100644
index 562531549..000000000
--- a/changelog.d/3970.bugfix
+++ /dev/null
@@ -1 +0,0 @@
-Replaced all occurences of e.message with str(e). Contributed by Schnuffle
diff --git a/changelog.d/3972.misc b/changelog.d/3972.misc
deleted file mode 100644
index e56299ee7..000000000
--- a/changelog.d/3972.misc
+++ /dev/null
@@ -1 +0,0 @@
-Further reduce the docker image size
diff --git a/changelog.d/3976.misc b/changelog.d/3976.misc
deleted file mode 100644
index 282148c98..000000000
--- a/changelog.d/3976.misc
+++ /dev/null
@@ -1 +0,0 @@
-Build py3 docker images for docker hub too
diff --git a/changelog.d/3980.bugfix b/changelog.d/3980.bugfix
deleted file mode 100644
index 7578414ed..000000000
--- a/changelog.d/3980.bugfix
+++ /dev/null
@@ -1 +0,0 @@
-Fix some instances of ExpiringCache not expiring cache items
diff --git a/changelog.d/3985.misc b/changelog.d/3985.misc
deleted file mode 100644
index ba935caf3..000000000
--- a/changelog.d/3985.misc
+++ /dev/null
@@ -1 +0,0 @@
-Updated the installation instructions to point to the matrix-synapse package on PyPI.
diff --git a/changelog.d/3986.bugfix b/changelog.d/3986.bugfix
deleted file mode 100644
index ce7434536..000000000
--- a/changelog.d/3986.bugfix
+++ /dev/null
@@ -1 +0,0 @@
-Fix lazy loaded sync in the presence of rejected state events
diff --git a/changelog.d/3987.misc b/changelog.d/3987.misc
deleted file mode 100644
index d6b501621..000000000
--- a/changelog.d/3987.misc
+++ /dev/null
@@ -1 +0,0 @@
-Disable USE_FROZEN_DICTS for unittests by default.
diff --git a/changelog.d/3988.misc b/changelog.d/3988.misc
deleted file mode 100644
index 10379d183..000000000
--- a/changelog.d/3988.misc
+++ /dev/null
@@ -1 +0,0 @@
-Remove unused Jenkins and development related files from the repo.
diff --git a/changelog.d/3989.misc b/changelog.d/3989.misc
deleted file mode 100644
index 26700d168..000000000
--- a/changelog.d/3989.misc
+++ /dev/null
@@ -1 +0,0 @@
-Improve stacktraces in certain exceptions in the logs
diff --git a/changelog.d/3990.bugfix b/changelog.d/3990.bugfix
deleted file mode 100644
index 51ea105a6..000000000
--- a/changelog.d/3990.bugfix
+++ /dev/null
@@ -1 +0,0 @@
-Fix error when logging incomplete HTTP requests
diff --git a/changelog.d/3991.bugfix b/changelog.d/3991.bugfix
deleted file mode 100644
index 6545871f5..000000000
--- a/changelog.d/3991.bugfix
+++ /dev/null
@@ -1 +0,0 @@
-Add a cache to get_destination_retry_timings
diff --git a/synapse/__init__.py b/synapse/__init__.py
index b1f7a89fb..43c5821ad 100644
--- a/synapse/__init__.py
+++ b/synapse/__init__.py
@@ -27,4 +27,4 @@ try:
 except ImportError:
     pass
 
-__version__ = "0.33.5.1"
+__version__ = "0.33.6"
diff --git a/synapse/python_dependencies.py b/synapse/python_dependencies.py
index 0f339a032..d4d983b00 100644
--- a/synapse/python_dependencies.py
+++ b/synapse/python_dependencies.py
@@ -58,7 +58,10 @@ REQUIREMENTS = {
     "msgpack-python>=0.3.0": ["msgpack"],
     "phonenumbers>=8.2.0": ["phonenumbers"],
     "six>=1.10": ["six"],
-    "prometheus_client>=0.0.18": ["prometheus_client"],
+
+    # prometheus_client 0.4.0 changed the format of counter metrics
+    # (cf https://github.com/matrix-org/synapse/issues/4001)
+    "prometheus_client>=0.0.18,<0.4.0": ["prometheus_client"],
 
     # we use attr.s(slots), which arrived in 16.0.0
     "attrs>=16.0.0": ["attr>=16.0.0"],