Add 2026 Hong Kong stock market holiday data

Updated data_hk.txt with complete 2026 holiday schedule from HKEX
official circular CT/075/25:

Full-day closures (14 days):
- New Year's Day (Jan 1)
- Lunar New Year (Feb 17-19)
- Good Friday (Apr 3)
- Day after Ching Ming Festival (Apr 6)
- Day after Easter Monday (Apr 7)
- Labour Day (May 1)
- Day after Buddha's Birthday (May 25)
- Dragon Boat Festival (Jun 19)
- HKSAR Establishment Day (Jul 1)
- National Day (Oct 1)
- Day after Chung Yeung Festival (Oct 19)
- Christmas Day (Dec 25)

Half-day trading (3 days):
- Lunar New Year's Eve (Feb 16)
- Christmas Eve (Dec 24)
- New Year's Eve (Dec 31)

Data source: https://www.hkex.com.hk/News/HKEX-Calendar?sc_lang=zh-HK

All 35 tests passing, including Hong Kong market half-day trading tests.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

Author: rainx

Changelog-zh_CN.md

@@ -2,6 +2,15 @@
 
 版本遵循语义化版本控制 (<major>.<minor>.<patch>)。
 
+## cn-stock-holidays 2.1.5 (2025-12-07)
+
+### 改进
+
+- **更新 2026 年香港股市节假日**: 从香港交易所官方通告添加完整的 2026 年节假日数据
+  - 全日休市：元旦（1月1日）、农历新年（2月17-19日）、耶稣受难节（4月3日）、清明节翌日（4月6日）、复活节星期一翌日（4月7日）、劳动节（5月1日）、佛诞翌日（5月25日）、端午节（6月19日）、香港特别行政区成立纪念日（7月1日）、国庆日（10月1日）、重阳节翌日（10月19日）、圣诞节（12月25日）
+  - 半日交易：农历新年前夕（2月16日）、圣诞节前夕（12月24日）、新年前夕（12月31日）
+  - 数据来源：香港交易所通告 CT/075/25 (<https://www.hkex.com.hk/News/HKEX-Calendar?sc_lang=zh-HK>)
+
 ## cn-stock-holidays 2.1.4 (2025-12-07)
 
 ### 改进

Changelog.md

@@ -2,6 +2,15 @@
 
 Versions follow Semantic Versioning (<major>.<minor>.<patch>).
 
+## cn-stock-holidays 2.1.5 (2025-12-07)
+
+### Improvements
+
+- **Updated 2026 Hong Kong Stock Market Holidays**: Added complete holiday data for 2026 from HKEX official circular
+  - Full-day closures: New Year's Day (Jan 1), Lunar New Year (Feb 17-19), Good Friday (Apr 3), Day after Ching Ming (Apr 6), Day after Easter Monday (Apr 7), Labour Day (May 1), Day after Buddha's Birthday (May 25), Dragon Boat Festival (Jun 19), HKSAR Day (Jul 1), National Day (Oct 1), Day after Chung Yeung Festival (Oct 19), Christmas (Dec 25)
+  - Half-day trading: Lunar New Year's Eve (Feb 16), Christmas Eve (Dec 24), New Year's Eve (Dec 31)
+  - Data source: HKEX Circular CT/075/25 (<https://www.hkex.com.hk/News/HKEX-Calendar?sc_lang=zh-HK>)
+
 ## cn-stock-holidays 2.1.4 (2025-12-07)
 
 ### Improvements

cn_stock_holidays/data_hk.txt

@@ -369,6 +369,20 @@
 20251007
 20251225
 20251226
+20260101
+20260217
+20260218
+20260219
+20260403
+20260406
+20260407
+20260501
+20260525
+20260619
+20260701
+20261001
+20261019
+20261225
 # Half-day trading days (Christmas Eve, New Year's Eve, and day before major holidays)
 20011224,h
 20021224,h
@@ -388,6 +402,7 @@
 20211224,h
 20241224,h
 20251224,h
+20261224,h
 # New Year's Eve half-days
 20001229,h
 20011231,h
@@ -415,6 +430,7 @@
 20231229,h
 20241231,h
 20251231,h
+20261231,h
 # Lunar New Year's Eve half-days
 20010123,h
 20020211,h
@@ -435,6 +451,7 @@
 20230120,h
 20240209,h
 20250128,h
+20260216,h
 # Day before major holidays
 20010404,h
 20020404,h
@@ -480,4 +497,4 @@
 20220930,h
 20230928,h
 20240930,h
-20250930,h
+20250930,h

pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "hatchling.build"
 
 [project]
 name = "cn-stock-holidays"
-version = "2.1.4"
+version = "2.1.5"
 description = "A List of china stock exchange holidays"
 readme = "README.md"
 license = { text = "MIT" }