Merge pull request libgit2#4594 from pks-t/pks/mempack-assert

odb: fix writing to fake write streams

Merge pull request libgit2#4563 from libgit2/ethomson/ssh-unescape

Refactor `gitno_extract_url_parts`

Merge pull request libgit2#4475 from pks-t/pks/v0.26.1-backports

v0.26.3 backports

Merge pull request libgit2#4572 from pks-t/pks/index-secfixes

Security fixes for reading index v4

Merge pull request libgit2#4568 from pks-t/pks/zlib-update-0.26

deps: upgrade embedded zlib to version 1.2.11

Merge pull request libgit2#4545 from libgit2/ethomson/checkout_filemode

Respect core.filemode in checkout

Merge pull request libgit2#4533 from pks-t/pks/v0.27.0-rc1

v0.27.0-rc1: version bump

CHANGELOG: document git_filter_init and GIT_FILTER_INIT

CHANGELOG: document git_filter_init and GIT_FILTER_INIT

Merge pull request libgit2#4262 from libgit2/ethomson/bump-v26

Update version number to 0.26