Can I use
?

PushSubscriptionChangeEvent API: oldSubscription

IE

  1. ❌ 6 - 10: Not supported
  2. ❌ 11: Not supported

Edge

  1. ❌ 12 - 16: Not supported
  2. ✅ 17 - 18: Supported
  3. ❌ 79 - 142: Not supported
  4. ❌ 143: Not supported

Firefox

  1. ❌ 2 - 136: Not supported
  2. ✅ 137 - 144: Supported
  3. ✅ 145: Supported
  4. ✅ 146 - 148: Supported

Chrome

  1. ❌ 4 - 137: Not supported
  2. ✅ 138 - 142: Supported
  3. ✅ 143: Supported
  4. ✅ 144 - 146: Supported

Safari

  1. ❌ 3.1 - 15.6: Not supported
  2. ✅ 16.0 - 26.1: Supported
  3. ✅ 26.2: Supported
  4. ✅ TP: Supported

Opera

  1. ❌ 10 - 121: Not supported
  2. ✅ 122: Supported

Safari on iOS

  1. ❌ 3.2 - 16.3: Not supported
  2. ✅ 16.4 - 18.7: Supported
  3. ✅ 26.0: Supported
  4. ✅ 26.1: Supported

Opera Mini

  1. ﹖ all: Support unknown

Android Browser

  1. ❌ 2.1 - 4.4.4: Not supported
  2. ✅ 142: Supported

Opera Mobile

  1. ❌ 12 - 12.1: Not supported
  2. ❌ 80: Not supported

Chrome for Android

  1. ✅ 142: Supported

Firefox for Android

  1. ✅ 144: Supported

UC Browser for Android

  1. ❌ 15.5: Not supported

Samsung Internet

  1. ❌ 4 - 28: Not supported
  2. ❌ 29: Not supported

QQ Browser

  1. ❌ 14.9: Not supported

Baidu Browser

  1. ﹖ 13.52: Support unknown

KaiOS Browser

  1. ❌ 2.5: Not supported
  2. ❌ 3: Not supported