Has been released.
I can recommend that version, I have been using 2.53 for a long time without bigger problems. But you should keep in mind that there will be no way back for your existing User Profile after you will have used it with 2.53.1.
Additionally to the official Release Notes here you find some more information concerning changes with SeaMonkey 2.53.1
You need a Bugzilla-Account for the queries here in the blogpost. All queries without any liability, because (not only) correct use of TARGET MILESTONE is controversial.
Mistakes in official Release Notes
I don’t know.
I do not know which Firefox56 – features made it into SeaMonkey 2.53.1
- Bugs in SeaMonkey what have been fixed for SeaMonkey 2.53
Possible new bugs (“Regressions“)
- Possible new bugs in SeaMonkey — only those with Status New or Assigned already have been confirmed as real bugs
- Possible new bugs, caused by regressions in Firefox or in Thunderbird, which also might affect SeaMonkey.
You can find workarounds for new problems in the Wiki
Download from here!
Thanks to all who contributed to the project and helped to make possible this release!