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please test tarsnap 1.0.33

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Hi all,

A potential version 1.0.33 of the Tarsnap client code is ready for testing.
You can find it at
and the tarball has SHA256 hash
  1b1026df18a672d1fc3707c73caf164f3d761fe7517bd3a941144e408eef048d .
A diff between 1.0.32 and this tarball is at
  https://www.tarsnap.com/download/1.0.32-1.0.33a.patch .

This version has a few significant changes:
* tarsnap now caches archive metadata blocks in RAM, typically providing a
  5x -- 10x speedup and reduction in bandwidth usage when deleting a large
  number of archives at once and when running "fsck".
* tarsnap's internal "chunk" metadata structure is now smaller, providing a
  ~10% reduction in memory usage on 32-bit machines and a ~30% reduction in
  memory usage on 64-bit machines.
* tarsnap's --newer* options now correctly descend into old directories in
  order to look for new files.  (But note that tarsnap's snapshotting makes
  these options unnecessary in most situations.)

As usual, there's also a number of minor bug fixes and improvements.

Assuming I don't get any emails complaining that something is broken, I'll be
releasing this officially as version 1.0.33 some time around August 8th.  As
always, if you find any newly introduced bugs before the official release,
you'll be eligible for double the normal Tarsnap bug bounties.

- -- 
Colin Percival
Security Officer Emeritus, FreeBSD | The power to serve
Founder, Tarsnap | www.tarsnap.com | Online backups for the truly paranoid

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