For Java, Groovy, Kotlin, and Android compatibility, see the [full compatibility notes](userguide/compatibility.html).   

## New features and usability improvements

<!-- Do not add breaking changes or deprecations here! Add them to the upgrade guide instead. -->

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Lin Sun <******@****.***> 1713406182 -0400

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    .onlyIfCached()
    .maxStale(Int.MAX_VALUE.seconds)
    .build()

internal fun CacheControl.Builder.commonBuild(): CacheControl {
  return CacheControl(
    noCache = noCache,
    noStore = noStore,
    maxAgeSeconds = maxAgeSeconds,
    sMaxAgeSeconds = -1,
    isPrivate = false,
    isPublic = false,
    mustRevalidate = false,
    maxStaleSeconds = maxStaleSeconds,
    minFreshSeconds = minFreshSeconds,

* Add new links:
    * **English articles**:
        * [Real-time Notifications with Python and Postgres](https://wuilly.com/2019/10/real-time-notifications-with-python-and-postgres/) by [Guillermo Cruz](https://wuilly.com/).

zirain <******@****.***> 1713320861 +0800

  postgres:
    strategy:
      matrix:
        dbversion: ['postgres:latest', 'postgres:13', 'postgres:12', 'postgres:11', 'postgres:10']
        go: ['1.22', '1.21', '1.20']
        platform: [ubuntu-latest] # can not run in macOS and Windows
    runs-on: ${{ matrix.platform }}

    services:
      postgres:
        image: ${{ matrix.dbversion }}
        env:

  fun emptyBuilderIsEmpty() {
    val cacheControl = CacheControl.Builder().build()
    assertThat(cacheControl.toString()).isEqualTo("")
    assertThat(cacheControl.noCache).isFalse()
    assertThat(cacheControl.noStore).isFalse()
    assertThat(cacheControl.maxAgeSeconds).isEqualTo(-1)
    assertThat(cacheControl.sMaxAgeSeconds).isEqualTo(-1)
    assertThat(cacheControl.isPrivate).isFalse()
    assertThat(cacheControl.isPublic).isFalse()