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Breaking changes:

• minimum Go toolchain version is now 1.10

Other changes in this release:

• journal: use a connection-less socket
• docs: fix multiple docstrings
• examples: Listeners method is now without arguments
• examples: systemd-activate is now systemd-socket-activate
• test/machine1: fix sporadic test failures from TestMachine
• journal: skip sending test if journald is unavailable

Breaking changes:

• minimum Go toolchain version is now 1.7

New features:

• machine1: add methods ListMachines, ListImages, GetMachineAddresses

Other changes in this release:

• dbus: Fix API break from godbus
• unit: use ContainsAny instead of IndexAny
• journal: fix validation of key names
• docs: Add more detail to Conn.ListUnits
• tests/activation: fix local test run
• test/journal: add some send tests

Breaking changes:

• activation: remove unsafe support for fd re-use (removed unsetEnv flags)

New features:

• activation: add two functions to provide listeners with names
• daemon: add convenience constants for SdNotify
• login1: add support for session management
• sdjournal: add formatting feature to JournalReader

Other changes in this release:

• activation: close files after creating listeners
• daemon: clean up copyright headers and documentation
• dbus: add systemd requirement note to ListUnitsByNames
• journal: add missing error handling for write & unlink calls
• sdjournal: add docstrings for public error values
• sdjournal: fix race conditions in JournalReader.Follow
• sdjournal: fix concurrency & shadowing issues in tests
• sdjournal: propagate AddMatch errors in constructor
• ... and many more linting fixes (thanks @muesli!)

Summary of changes in this release:

• dbus: fix subStateSubscriber crash
• dbus: make SetSubStateSubscriber safer
• dbus: add SetPropertiesSubscriber method
• dbus: add SystemState method for getting system state
• login1: add close function
• sdjournal: clarify documentation's notion of "current"
• sdjournal: support testing cursor against current position

Summary of changes in this release:

• util: fix runningFromSystemService
• sdjournal: add NewJournalFromFiles
• sdjournal: fix Wait() timeout
• sdjournal: fix goroutine leak
• sdjournal: add GetCatalog
• machined: add several methods
• tests: misc improvements

Breaking changes:

• daemon: introduce support for cleaning env variables
  (boolean parameter added to SdNotify and SdWatchdogEnabled)

Other changes in this release:

• daemon: add watchdog checker
• dbus: make New() fall back to direct systemd connection
• util: add tests for util package
• test: add license header check

Summary of changes in this release:

• dbus: add additional tests for dbus methods
• sdjournal: add GetUniqueValues
• sdjournal: fix return values type
• dbus/properties: add service type
• doc: syntax highlight activation in README

Summary of changes in this release:

• dbus: add mask/unmask for unit files
• dbus: add PropPids to set initial pids of transient scope units
• util: conditionally build CGO functions
• activation: don't specify NextProtos so that we can take advantage of HTTP/2
• sdjournal: fix concurrent map access
• sdjournal: fix race condition in test
• sdjournal: fix memory leak in cursor handling

Breaking changes:

• daemon: improve SdNotify errors signaling (changed return type)

Other changes in this release:

• sdjournal: fix an implicit seek to head
• sdjournal: add GetDataBytes() and GetDataValueBytes() to Journal
• multiple testsuite fixes

Summary of changes in this release:

• sdjournal: fix incomplete reads in JournalReader.Read()
• sdjournal: break the loop if error happens during Write()
• sdjournal: fix Writer call