11.1.0: I/O exceptions

• Merged PR #27: Refactor I/O exceptions, dropping XP 10 support in the
  doing. See xp-framework/core#363 for a write-up on the reason behind
  this and the plan to move forward.
  (@thekid)

11.0.0. PHP 7.4

• Heads up: Dropped support for PHP < 7.4, see xp-framework/rfc#343
  (@thekid)
• Added PHP 8.5 and 8.6 to the test matrix - @thekid

10.3.0: XP 12 compatibility

• Made compatible with XP 12 - @thekid
• Added PHP 8.4 to the test matrix - @thekid

10.2.0: Forward compatibility

• Added PHP 8.3 to test matrix, migrated test suite to new testing library
  xp-framework/test, see xp-framework/rfc#344
  (@thekid)
• Refactored peer.http.Authorizations to use dynamic invocations instead
  of reflection. See xp-framework/rfc#338
  (@thekid)

10.1.0: Flushing output

• Merged PR #26: Implement flushing chunked output streams - @thekid

10.0.3: PHP 8.2 compatibility

• Fixed "Creation of dynamic property" warnings in PHP 8.2 - @thekid

10.0.2: XP11, library compatibility

• Made compatible with XP 11 and xp-framework/logging version 11.0.0
  (@thekid)

10.0.1: PHP 8.1 compatibility

• Fixed stristr(): Passing null to parameter 1 ($haystack) of type string
  is deprecated in PHP 8.1
  (@thekid)

10.0.0: Drop PHP 5 support

• Implemented xp-framework/rfc#334: Drop PHP 5.6:
  . Heads up: Minimum required PHP version now is PHP 7.0.0
  . Rewrote code base, grouping use statements
  . Rewrote isset(X) ? X : default to X ?? default
  (@thekid)

9.1.4: SSL fix

• Fixed SSL handling when the server does not support TLS, see PR #25
  (@patzerr, @thekid).