ocaml-maint team mailing list archive

[Marco van Beek <1568459@xxxxxxxxxxxxxxxxxx>]

"This is a real show-stopper. It's not possible to fix this with a new
protocol version?"

I think the problem is really, why should different versions of a multi-
part solution break a system, and the answer is they shouldn't, at least
not between minor versions and ideally all versions should be backwards
compatible for at least a few major versions.

Unison is a great program until you want to run it on different systems,
and let's face it, none of us want to build from source if there is a
compiled package already available. We don't always have a choice in
when different machines are upgraded, even updating might need a server
restart that you can't do until the weekend but the desktops are all
done the same day.

It's a fundamental design flaw. It should be backwardly compatible.
Software should ALWAYS be backwardly compatible within minor updates,
let alone major ones.

-- 
You received this bug notification because you are a member of Debian
OCaml Maintainers, which is subscribed to unison in Ubuntu.
https://bugs.launchpad.net/bugs/1568459

Title:
  unison incompatible with older ubuntu/debian versions

Status in unison package in Ubuntu:
  Confirmed

Bug description:
  Hi,

  16.04 comes with a new version of unison, which is great.

  Unfortunately, it comes just with that new version, not older ones.
  Unison can synchronize only with precisely the same version on the
  peer, not interact with others. Therefore a 16.04 machine cannot sync
  to any older linux (ubuntu,debian,...), especially not to servers
  running 14.04.

  Older versions of ubuntu therefore came with different versions of
  unison, i.e. at least the version of the last LTS version to keep it
  functional and to have new clients work with older (but still
  supported) LTS servers.

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: unison 2.48.3-1ubuntu1
  ProcVersionSignature: Ubuntu 4.4.0-18.34-generic 4.4.6
  Uname: Linux 4.4.0-18-generic x86_64
  ApportVersion: 2.20.1-0ubuntu1
  Architecture: amd64
  CurrentDesktop: LXDE
  Date: Sun Apr 10 10:20:04 2016
  Dependencies:
   gcc-6-base 6-20160405-0ubuntu1
   libc6 2.23-0ubuntu2
   libgcc1 1:6-20160405-0ubuntu1
  SourcePackage: unison
  UpgradeStatus: Upgraded to xenial on 2016-04-06 (4 days ago)

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