Add release notes for 2.7.8 (#8160)

Co-authored-by: pleek91 <pleek91@gmail.com> Co-authored-by: Terrence Dorsey <terrence@prefect.io>
PrefectHQ · Jan 12, 2023 · 6b6cff3 · 6b6cff3
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diff --git a/RELEASE-NOTES.md b/RELEASE-NOTES.md
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 # Prefect Release Notes
 
+## Release 2.7.8
+
+### Flow run timeline view
+
+We're excited to announce that a new timeline graph has been added to the flow run page. 
+This view helps visualize how execution of your flow run takes place in time, an alternative to the radar view that focuses on the structure of dependencies between task runs.
+
+This feature is currently in beta and we have lots of improvements planned in the near future! We're looking forward to your feedback.
+
+![The timeline view visualizes execution of your flow run over time](https://user-images.githubusercontent.com/6200442/212138540-78586356-89bc-4401-a700-b80b15a17020.png)
+
+### Enhancements
+- Add [task option `refresh_cache`](https://docs.prefect.io/concepts/tasks/#refreshing-the-cache) to update the cached data for a task run — https://github.com/PrefectHQ/prefect/pull/7856
+- Add logs when a task run receives an abort signal and is in a non-final state — https://github.com/PrefectHQ/prefect/pull/8097
+- Add [publishing of multiarchitecture Docker images](https://hub.docker.com/r/prefecthq/prefect-dev) for development builds  — https://github.com/PrefectHQ/prefect/pull/7900
+- Add `httpx.WriteError` to client retryable exceptions — https://github.com/PrefectHQ/prefect/pull/8145
+- Add support for memory limits and privileged containers to `DockerContainer` — https://github.com/PrefectHQ/prefect/pull/8033
+
+### Fixes
+- Add support for `allow_failure` to mapped task arguments — https://github.com/PrefectHQ/prefect/pull/8135
+- Update conda requirement regex to support channel and build hashes — https://github.com/PrefectHQ/prefect/pull/8137
+- Add numpy array support to orjson serialization — https://github.com/PrefectHQ/prefect/pull/7912
+
+### Experimental
+- Rename "Worker pools" to "Work pools" — https://github.com/PrefectHQ/prefect/pull/8107
+- Rename default work pool queue — https://github.com/PrefectHQ/prefect/pull/8117
+- Add worker configuration — https://github.com/PrefectHQ/prefect/pull/8100
+- Add `BaseWorker` and `ProcessWorker` — https://github.com/PrefectHQ/prefect/pull/7996
+
+### Documentation
+- Add YouTube video to welcome page - https://github.com/PrefectHQ/prefect/pull/8090
+- Add social links - https://github.com/PrefectHQ/prefect/pull/8088
+- Increase visibility of Prefect Cloud and Orion REST API documentation - https://github.com/PrefectHQ/prefect/pull/8134
+
+## New Contributors
+* @muddi900 made their first contribution in https://github.com/PrefectHQ/prefect/pull/8101
+* @ddelange made their first contribution in https://github.com/PrefectHQ/prefect/pull/7900
+* @toro-berlin made their first contribution in https://github.com/PrefectHQ/prefect/pull/7856
+* @Ewande made their first contribution in https://github.com/PrefectHQ/prefect/pull/7912
+* @brandonreid made their first contribution in https://github.com/PrefectHQ/prefect/pull/8153
+
+**All changes**: https://github.com/PrefectHQ/prefect/compare/2.7.7...2.7.8
+
 ## Release 2.7.7
 
 ### Improved reference documentation

diff --git a/docs/overrides/main.html b/docs/overrides/main.html
@@ -1,10 +1,10 @@
 {% extends "base.html" %}
 {% block announce %}
 <div style="color: white;">
-  <a href="https://github.com/PrefectHQ/prefect/blob/main/RELEASE-NOTES.md#release-277" style="color: #07e798;">
-    <strong>Prefect 2.7.7 is live!</strong>
-  </a> New reference documentation, better support for block schema changes, and 
-  <a href="https://github.com/PrefectHQ/prefect/blob/main/RELEASE-NOTES.md#release-277" style="color: #07e798;">
+  <a href="https://github.com/PrefectHQ/prefect/blob/main/RELEASE-NOTES.md#release-278" style="color: #07e798;">
+    <strong>Prefect 2.7.8 is live!</strong>
+  </a> Includes a new flow run timeline view, refreshing cached task data, and
+  <a href="https://github.com/PrefectHQ/prefect/blob/main/RELEASE-NOTES.md#release-278" style="color: #07e798;">
     <strong>many fixes & enhancements!</strong>
   </a>
 </div>