[tz] [tz-announce] 2020d release of tz code and data available

Paul Eggert eggert at cs.ucla.edu
Wed Oct 21 21:11:14 UTC 2020


The 2020d release of the tz code and data is available. It reflects the 
following changes, which were either circulated on the tz mailing list or are 
relatively minor technical or administrative changes:

   Briefly:
     Palestine ends DST earlier than predicted, on 2020-10-24.

   Changes to past and future timestamps

     Palestine ends DST on 2020-10-24 at 01:00, instead of 2020-10-31
     as previously predicted (thanks to Sharef Mustafa.)  Its
     2019-10-26 fall-back was at 00:00, not 01:00 (thanks to Steffen
     Thorsen.)  Its 2015-10-23 transition was at 01:00 not 00:00, and
     its spring 2020 transition was on March 28 at 00:00, not March 27
     (thanks to Pierre Cashon.)  This affects Asia/Gaza and
     Asia/Hebron.  Assume future spring and fall transitions will be on
     the Saturday preceding the last Sunday of March and October,
     respectively.

Here are links to the release files:

   https://www.iana.org/time-zones/repository/releases/tzcode2020d.tar.gz
   https://www.iana.org/time-zones/repository/releases/tzdata2020d.tar.gz
   https://www.iana.org/time-zones/repository/releases/tzdb-2020d.tar.lz

As usual, links to the latest release files are here:

   https://www.iana.org/time-zones/repository/tzcode-latest.tar.gz
   https://www.iana.org/time-zones/repository/tzdata-latest.tar.gz
   https://www.iana.org/time-zones/repository/tzdb-latest.tar.lz

Links are also available via plain HTTP, and via FTP from
ftp://ftp.iana.org/tz/releases with the same basenames as above.

Each release file has a GPG signature, which can be retrieved by appending 
".asc" to the above URLs. Copies of these signatures are appended to this message.

This release corresponds to commit ab21ad9710b88f28995b7ed47c6efda47ffb1be5 
dated 2020-10-21 11:24:13 -0700 and tagged '2020d' in the development GitHub 
repository at <https://github.com/eggert/tz>.

Here are the SHA-512 checksums for the release files:

315ce86574780d89482761298137b2871a21cb4391886abdc9f29c6cc09e8b8f6585f96d3f4dfef8d7b54e24720214f5c77144114ad58cc91aa5bbde350c0f9b 
  tzcode2020d.tar.gz
362e4569a666b0776614be3f63f1fe3d5ae259055e7051c9875f36023db9c52b0c5a10c19067114443a4cf2bf92475f8a0aebdf79bac836d967527fcdea4e9b6 
  tzdata2020d.tar.gz
d7e74331d10d17a855363fbae16d55dbf422c1bc3ac4aff56c897d78cea185f16a9342927e292923198bb8a2f4230ca1eb3d23960b44f5c71db153cf83ed3f7c 
  tzdb-2020d.tar.lz

Here are the GPG digital signatures for the release files:

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PS. If your tzdata parser does not yet support negative DST offsets or times 
past 24:00, or if it insists on a 'pacificnew' file that is no longer present, 
this release's data entries can be turned into a rearguard-format tarball that 
should work even with these older parsers. This is intended to be a temporary 
transition aid for these parsers. To generate a rearguard-format tarball, obtain 
the full distribution as described above, and run the command 'make 
rearguard_tarballs' on a development host. Or you can run 'make rearguard.zi' to 
generate a single file that can be fed directly to a parser that works like 'zic'.


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