Fix the 8.17 to 9.0 upgrade guide

Closes #29860

See merge request !10183

clarify NFS server vs client options

See merge request !10164

Cleanup Notify spec and combine multiple examples into one

See merge request !10129

Return 404 if deploy key cannot be found in Projects::DeployKeysController#disable

Closes #29633

See merge request !10091

Closes #29633

Remove Cookies class from global space

See merge request !9883

Fixed the filter bar not working in IE

Closes #29742

See merge request !10149

Allow chat notifications only for the default branch

Closes #28565 and #18088

See merge request !10158

Increase ETag cache expiry time

See merge request !10180

Display all closed issues in “done” board list

Closes #24215

See merge request !10173

Don't try to find a user by personal_access_token if the token is nil

See merge request !10146

align Mark all as done with other Done buttons on Todos page

Closes #29555

See merge request !10171

Introduce a new middleware for the test environment that can block requests

Closes #28307

See merge request !9846

Run bundle install after checking out $CI_COMMIT_SHA

See merge request !10166

Use match_array instead of eq when order is irrelevant

Closes #29709

See merge request !10148

Install gitlab-shell and gitlab-workhorse after updating the code, and
update configuration files before installing libs, migrations etc.

[ci skip]
Signed-off-by: Rémy Coutable <remy@rymai.me>

Fixed bug stopping issue boards cards being dragged

Closes #29576

See merge request !10139

Poll with vue resource get function

Closes #29575

See merge request !10057

Correct parameter definition in Pipeline Triggers docs

See merge request !10176

As discussed in #29777.

Add notes about dropping support for Ruby 2.1.x

See merge request !10170

Signed-off-by: Rémy Coutable <remy@rymai.me>

Fix project tag order because we assume so in test

See merge request !10174

See https://gitlab.com/gitlab-org/gitlab-ce/builds/12778220
found in https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/10156

Add `aria-label` for feature status accessibility

Closes #27503

See merge request !9830

[ci skip]

Move merge-request-info style to only apply to related MRs

See merge request !10119

Fix `Ctrl+Enter` support for Quick Submit

Closes #29550

See merge request !10002

Fix "N changed files" link toggler jumping to top

Closes #29414

See merge request !10126

Corrected the color from the time tracking icon in the issuable sidebar

Closes #29588

See merge request !10160

Signed-off-by: Rémy Coutable <remy@rymai.me>