[tahoe-lafs-trac-stream] [tahoe-lafs] #1773: check/test/update claim about compatibility with old clients and servers in relnotes.txt

[tahoe-lafs]

#1773: check/test/update claim about compatibility with old clients and servers in
relnotes.txt
-------------------------+-------------------------------------------------
     Reporter:           |      Owner:  marlowe
  davidsarah             |     Status:  new
         Type:  defect   |  Milestone:  1.10.0
     Priority:  normal   |    Version:  1.9.1
    Component:           |   Keywords:  relnotes docs backward-
  documentation          |  compatibility
   Resolution:           |
Launchpad Bug:           |
-------------------------+-------------------------------------------------

Comment (by ClashTheBunny):

 We don't anymore.  It used to be done.  Here's zooko's statement on this:

 > > It would be cool for someone to set up to run inter-node regression
 tests of various versions.
 >
 > Yes, that would! I value backward-compatibility, because I recognize
 > that people are often more conservative about storage than about other
 > kinds of software.
 >
 > There used to be a thing called Memory Lane:
 >
 > https://tahoe-lafs.org/trac/tahoe-lafs/wiki/TestGrid?version=54
 >
 > But it needs a maintainer:
 >
 > https://tahoe-lafs.org/trac/tahoe-lafs/ticket/1002# do some
 > renovations on Memory Lane
 >
 > That would be a pretty cool thing to have on the live Test Grid, so if
 > you had a question like "What happens if you upload a new
 > XSalsa20-encrypted file using Tahoe-LAFS v14.1 to a grid with one
 > Tahoe-LAFS storage server of each version going back a few years:
 > 1.10.0, 1.9.2, 1.8.3, 1.7.1, 1.6.1, 1.5, 1.4.1, 1.3, 1.2, 1.1, and
 > 1.0, what happens?", then you can just try it and see! (Hopefully the
 > answer is It Just Works because the storage servers don't know what
 > kind of encryption you are using on the client side. ☺)

-- 
Ticket URL: <https://tahoe-lafs.org/trac/tahoe-lafs/ticket/1773#comment:2>
tahoe-lafs <https://tahoe-lafs.org>
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