- Rebase to tzdata-2017a
  - Mongolia no longer observes DST (BZ #1425223)
  - Add upstream patch to fix over-runing of POSIX limit on zone abbreviations.
- Add zone1970.tab to the install files. (BZ #1427696)

- Rebase to tzdata-2016ij
  - Saratov region of Russia is moving from +03 offset to +04 offset
    on 2016-12-04.

- Rebase to tzdata-2016i:
  - Cyprus is now split into two time zones as of 2016-10-30
  - Tonga will reintroduce DST on 2016-11-06

- Rebase to tzdata-2016h:
  - Palestine will end DST on 2016-10-29 not 2016-10-21.

- Rebase to tzdata-2016g.
  - Turkey changed from EET/EEST (+02/+03) to permanent +03,
    on 2016-09-07.
  - A new leap second will be added on 2016-12-31 23:59:60 UTC.

- Rebase to 2016f
  - Egypt cancelled DST.
  - Asia/Novosibirsk transitions from +06 to +07 on 2016-07-24 at 02:00.

- Rebase to 2016e
  - Egypt reinstates DST.

- Rebase to 2016d 
  - America/Caracas switches from -0430 to -04 on 2016-05-01 at 02:30.
  - Asia/Magadan switches from +10 to +11 on 2016-04-24 at 02:00.
  - New zone Asia/Tomsk, split off from Asia/Novosibirsk.  It covers
    Tomsk Oblast, Russia, which switches from +06 to +07 on 2016-05-29
    at 02:00.

- Rebase to 2016c
  - Azerbaijan no longer observes DST.
  - Chile reverts from permanent to seasonal DST.

- Rebase to 2016b
  - New zones Europe/Astrakhan and Europe/Ulyanovsk for Astrakhan and
    Ulyanovsk Oblasts, Russia, both of which will switch from +03 to +04 on
    2016-03-27 at 02:00 local time.  They need distinct zones since their
    post-1970 histories disagree.  New zone Asia/Barnaul for Altai Krai and
    Altai Republic, Russia, which will switch from +06 to +07 on the same date
    and local time.  The Astrakhan change is already official; the others have
    passed the first reading in the State Duma and are extremely likely.
    Also, Asia/Sakhalin moves from +10 to +11 on 2016-03-27 at 02:00.
  - As a trial of a new system that needs less information to be made up,
    the new zones use numeric time zone abbreviations like "+04"
    instead of invented abbreviations like "ASTT".
  - Haiti will not observe DST in 2016.
  - Palestine's spring-forward transition on 2016-03-26 is at 01:00, not 00:00.
    Guess future transitions will be March's last
    Saturday at 01:00, not March's last Friday at 24:00.

- Rebase to 2016a
  - America/Cayman will not observe daylight saving this year after all.
    Revert our guess that it would.
  - Asia/Chita switches from +0800 to +0900 on 2016-03-27 at 02:00.
  - Asia/Tehran now has DST predictions for the year 2038 and later,
    to be March 21 00:00 to September 21 00:00.  This is likely better
    than predicting no DST, albeit off by a day every now and then.

- Rebase to 2015g
  - Turkey's 2015 fall-back transition is scheduled for Nov. 8, not Oct. 25.
  - Norfolk moves from +1130 to +1100 on 2015-10-04 at 02:00 local time.
  - Fiji's 2016 fall-back transition is scheduled for January 17, not 24.
  - Fort Nelson, British Columbia will not fall back on 2015-11-01.  It has
    effectively been on MST (-0700) since it advanced its clocks on 2015-03-08.
    New zone America/Fort_Nelson.

- Rebase to 2015e:
  - Morocco will suspend DST from 2015-06-14 03:00 through 2015-07-19 02:00,
    not 06-13 and 07-18 as we had guessed.  (Thanks to Milamber.)
  - Assume Cayman Islands will observe DST starting next year, using US rules.
    Although it isn't guaranteed, it is the most likely.

- Rebase to 2015d:
  - The Egyptian Cabinet announced that DST will be cancelled for 2015.
  - The abbreviations for Hawaii-Aleutian standard and daylight times
    have been changed from HAST/HADT to HST/HDT, as per US Government
    Printing Office style. This affects only America/Adak since 1983,
    as America/Honolulu was already using the new style.

- Rebase to 2015b
  - Mongolia will start observing DST again this year, from the last
    Saturday in March at 02:00 to the last Saturday in September at 00:00.
  - Palestine will start DST on March 28, not March 27.  Also,
    correct the fall 2014 transition from September 26 to October 24.
    Adjust future predictions accordingly.

- Rebase to 2015a
  - New leap second 2015-06-30 23:59:60 UTC as per IERS Bulletin C 49.
  - The Mexican state of Quintana Roo, represented by America/Cancun,
    will shift from Central Time with DST to Eastern Time without DST
    on 2015-02-01 at 02:00.
  - Chile will not change clocks in April or thereafter; its new
    standard time will be its old daylight saving time.  This affects
    America/Santiago, Pacific/Easter, and Antarctica/Palmer.

- Rebase to 2014i
  - Pacific/Fiji will observe DST from 2014-11-02 02:00 to 2015-01-18 03:00.
  - A new Zone Pacific/Bougainville, for the part of Papua New Guinea
    that plans to switch from UTC+10 to UTC+11 on 2014-12-28 at 02:00.

- Rebase to 2014e
  - Morrocco suspends DTS for Ramadan 
       June 28 at 03:00 and August 2 at 02:00
  - Egypt suspends DTS for Ramadan
       June 26 and July 31 at 24:00

- Rebase to 2014d
  - zic no longer generates files containing time stamps before
    the Big Bang.  This works around GNOME bug 730332

- Rebase to 2014b
  - Crimea switches to Moscow time on 2014-03-30 at 02:00 local time.
  - New entry for Troll station, Antarctica.

- Turkey begins DST on 2014-03-31, not 03-30.

- Fiji ends DST on 2014-01-19 at 02:00, not the previously-scheduled 03:00.

- Rebase with early release of 2013i from Paul Eggert github.
  - Jordan switches back to standard time at 00:00 on December 20,2013.
  - The 2006-2011 transition schedule is planned to resume in 2014.
  - The compile-time flag NOSOLAR has been removed.
  - The files solar87, solar88, and solar89 are no longer distributed.
  - tz-link.htm now mentions Noda Time.