Changelog: https://www.ruby-lang.org/en/news/2020/03/31/ruby-2-5-8-released/
(cherry picked from commit 99b09d6)

Changelog: https://www.ruby-lang.org/en/news/2020/03/31/ruby-2-6-6-released/
(cherry picked from commit b312ecf)

The webrtc code suffered from a race condition when used
with Pulseaudio. This lead to audio input breaking every
couple of minutes during a webrtc session.

(cherry picked from commit 81b18c3)

(cherry picked from commit b3c2908)

https://chromereleases.googleblog.com/2020/03/stable-channel-update-for-desktop_31.html

This update includes 8 security fixes.

CVEs:
CVE-2020-6450 CVE-2020-6451 CVE-2020-6452

(cherry picked from commit 6b7528c)

https://chromereleases.googleblog.com/2020/04/stable-channel-update-for-desktop.html

Note: This update contains only two fixes [0]. The fix that reverts a
feature which caused a crash spike on 80.0.3987.162 [1] seems important
for us (though the commit doesn't provide any data on the crash spike).

[0]: https://chromium.googlesource.com/chromium/src/+log/80.0.3987.162..80.0.3987.163?pretty=fuller
[1]: https://chromium.googlesource.com/chromium/src/+/fc11c43603c05a9ef77430a6b4081a01969d2bf4

(cherry picked from commit cbd13f3)

[19.09] chromium: 80.0.3987.149 -> 80.0.3987.163 (backport)

https://lists.zx2c4.com/pipermail/wireguard/2020-April/005237.html

Resolves #84009

(cherry picked from commit b503b2c)

[19.09] firefox{,-bin}: 74.0 -> 74.0.1, firefox-esr: 68.6.0esr  -> 68.6.1esr