Thunderbird 38.5.0 is now available / special notice

John L. Jacobs jlj at
Wed Dec 23 23:59:20 UTC 2015

I do have XP SP2 on my network but rarely even powered up. What I find 
difficult to understand is your use of the word "deprecate" in the 
context of MS and SHA1. In my experience, SHA1 has pretty much not be 
used for quite a while in favor of SHA2 (SHA-256). Thuderbird (an old 
version?) is on the XP machine, not being used, would update, data on it 
has been irrelevant for a long time. Let me know what you want are 
looking for.

I read into this and other communications that TB is in someway going to 
incorporate security certificates???
John L Jacobs, Retired Network Engineer
4105 Primrose Way
Napa, Ca 94558-1595
Ph: 415-738-2550


Wayne Mery (Thunderbird QA) wrote:
> Thunderbird 38.5.0 is available, and users are getting automatic 
> updates.  See 
> (the notes are not yet available via Thunderbird)
> Now some special notes and a request:
> * In a week or two a version 38.5.1 will be made available. It is 
> planned, and not necessarily a security update. The primary purpose, 
> together with 38.5.0, is to allow Windows XP users to UPDATE 
> Thunderbird after Microsoft deprecates SHA1 on the XP platform [1]. 
> (The same thing is being done for Firefox [2])
> * Request - if you have access to an XP SP2 system, we want to hear 
> from you. We need *SP2* users to do some testing. Please email me to 
> volunteer.
> * Similar work will be done the Thunderbird beta channel.
> * For general information about sha-1/sha-2 (not in the context of the 
> product update process) see 
> [1]
> [2]
> _______________________________________________
> tb-enterprise mailing list
> tb-enterprise at

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