This bug deals with Telemetry histograms that were set to expire in version 40. I fixed the expiry dates for histograms which were not supposed to expire. I added comments to the histogram's description field for histograms that did need to expire. The owners of those histograms need to remove their expired histogram and the accumulation code.

Moved the patch out of bug 1136118

The patch fixes probe expiry dates based on the following data sources: 1. Emails and conversation summarized in https://etherpad.mozilla.org/telemetryprobes40 2. Comments in bug 1045108 3. Comments in bug 1149284

the moz_sqlite probes had been setup correctly at the last iteration over probes, now I see you set back all of them to expire on 50. The ones marked as never were considered important, while the others could even go, nobody is using those cause they don't report interesting enough data. Could you please avoid converting "never" to "50"? Anything else is ok. We can also file a bug to remove the not-never probes imo.

Comment on attachment 8595043 [details] [diff] [review] fix_expired.patch Landed, with Roberto's r+ and Mak's objections applied https://hg.mozilla.org/integration/mozilla-inbound/rev/843442ce3f07