macbre

This extension has been inspired by http://devel.kostdoktorn.se/cache-translation-object and gives up to 5x speed increase when using WordPress with “custom” (i.e. non English) localisation files.
MO object created by WordPress is cached and stored in the <code>/wp-content/cache/</code> directory and then used when loading localisations.

l10n cache

Improves site performance by providing caching for localisation objects (*.mo files).

Sergey Biryukov

Some alternative (unofficial) Russian localization teams modify the automatic update procedure to download WordPress core packages from their own hosts. The problem is that they systematically fail to deliver updates on time (even security updates) and currently provide no visible support for their releases.
This plugin allows you to update any outdated Russian WordPress package to the latest release from <a href="https://ru.wordpress.org/" rel="nofollow ugc">ru.wordpress.org</a>.
You can safely remove the plugin after the update.
Thanks to AlexPTS for the idea.

Restore Automatic Update (ru_RU)

Allows you to update any outdated Russian WordPress package to the latest release from ru.wordpress.org.

l10n cache vs Restore Automatic Update (ru_RU)