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Java Release Model (on Scala Matsuri)
- Oracle announced in 2017 that Java would be released every 6 months, with feature releases in March and September and maintenance releases every 3 months in between. - Support is provided until the next feature release, with Long Term Support provided every 3 years for the Oracle JDK. - The new release cycle was criticized for being too short, as tools and testing need more than 6 months. - The version numbering was changed, with JDK 10 being the next feature release in 2018.
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Java Release Model (on Scala Matsuri)
- 1. Java Release Model ScalaMatsuri 2018 2018/3/18 Naoki Kishida
- 2. 6-monthly release • Oraclehad announced they will release Java every 6 months at 2017/9/6
- 3. Release cycle atJavaOne 2017 • Feature release every 6 months – March and September • Version string is $year.$month – Next release is JDK 18.3 • Maintenance release every 3 months – April and July for March release – October and January for September release
- 4. Support policy atJavaOne 2017 • Support is until next feature release • Long Time Support(LTS) every 3 years – Only Oracle JDK • OpenJDK and Oracle JDK will be same binary • Oracle JDK is for only Oracle customer
- 5. Java release cycleat JavaOne https://www.youtube.com/watch?v=UeyyLielXsU
- 6. Critics from StephenCelebourne (Date Time API author) • Tools needs 3months, evaluation needs another 3 months • We can not use new version with 6 month support forever. • Version format is different from current rule
- 7. Announce at DEVOXXBelgium • OpenJDK has also 3 year support every 3 year • Version number will be incremented every feature release – The next is JDK 10
- 8.
- 9. Version number • 2018/03Feature release JDK10 • 2018/04 Maintenance release JDK10.0.1 • 2018/07 Maintenance release JDK10.0.2 • 2018/09 Feature release JDK11 LTS • 2018/10 Maintenance release JDK11.0.1 LTS • 2019/01 Maintenance release JDK11.0.2 LTS
- 10. What’s new onJDK 10 • Local Variable Inference – Inferring for local variable – JEP 286 var now = LocalDateTime.now(); var list = new ArrayList<String>(); var stream = list.stream();
- 11. Java SE 8support is extended • Oracle has extended Java SE 8 support at least until 2019/1 • Java SE 8 support will finish after 3 months for JDK 11 release. • We should move to JDK 11 by 2019/1 http://www.oracle.com/technetwork/jp/java/eol-135779-ja.html