Closed Bug 1517222 Opened 4 years ago Closed 4 years ago

Update to tzdata2018i


(Core :: JavaScript: Internationalization API, defect)

Not set



Tracking Status
firefox-esr60 --- fixed
firefox65 --- fixed
firefox66 --- fixed


(Reporter: anba, Assigned: anba)



(2 files)

2018h was released on Dec 29 2018 and two days later 2018i was issued.

tzdata2018h release notes:

tzdata2018i release notes:
Attached patch bug1517222.patchSplinter Review
Updates the tzdata files to 2018i.

(The patch applies cleanly on beta, so we don't need a separate patch file for that branch.)
Assignee: nobody → andrebargull
Attachment #9034388 - Flags: review?(jwalden)
Patch for ESR60 backport. (A separate patch is needed, because ESR uses ICU60, whereas Beta/Central is already using ICU63.)
Attachment #9034389 - Flags: review?(jwalden)
Attachment #9034388 - Flags: review?(jwalden) → review+
Attachment #9034389 - Flags: review?(jwalden) → review+

Pushed by
Update tzdata in ICU data files to 2018i. r=Waldo

Keywords: checkin-needed
Closed: 4 years ago
Resolution: --- → FIXED
Target Milestone: --- → mozilla66

Comment on attachment 9034388 [details] [diff] [review]

[Beta/Release Uplift Approval Request]

Feature/Bug causing the regression: N/A

User impact if declined: Wrong time zone data when calling standard Date and Intl.DateTimeFormat methods.

Based on the release notes for tzdata 2018h and 2018i, the update is of special interest for users in:

  • Qyzylorda, Kazakhstan (time zone changed from +06 to +05 on 2018-12-21)
  • Metlakatla, Alaska (observes PST this winter only)
  • Morocco (updated DST predictions around Ramadan)
  • Iran (updated DST predictions for 2038-2090)
  • São Tomé and Príncipe (time zone changed from +01 to +00 on 2019-01-01)

Is this code covered by automated tests?: Yes

Has the fix been verified in Nightly?: Yes

Needs manual test from QE?: No

If yes, steps to reproduce:

List of other uplifts needed: None

Risk to taking this patch: Low

Why is the change risky/not risky? (and alternatives if risky): It only updates time zone data files.

String changes made/needed: None

Attachment #9034388 - Flags: approval-mozilla-beta?

Comment on attachment 9034389 [details] [diff] [review]

[ESR Uplift Approval Request]

If this is not a sec:{high,crit} bug, please state case for ESR consideration: See comment #7

User impact if declined: See comment #7

Fix Landed on Version: 66

Risk to taking this patch: Low

Why is the change risky/not risky? (and alternatives if risky): See comment #7

String or UUID changes made by this patch: None

Attachment #9034389 - Flags: approval-mozilla-esr60?

Comment on attachment 9034388 [details] [diff] [review]

[Triage Comment]
Updates a number of time zones with the latest data. Approved for 65.0b10 and 60.5.0esr.

Attachment #9034388 - Flags: approval-mozilla-beta? → approval-mozilla-beta+
Attachment #9034389 - Flags: approval-mozilla-esr60? → approval-mozilla-esr60+
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