Performance improvements

Incompatible changes

• Action: changed from func(attempt uint) error to func(context.Context) error
• How: changed from []func(attempt uint, err error) bool to []func(strategy.Breaker, uint, error) bool
• Retry: removed
• Try: removed
• TryContext: removed
• IsInterrupted: removed
• IsRecovered: removed
• BreakCloser: not supported anymore
• Breaker: extended by Err() error

strategy

• Strategy: changed from func(attempt uint, err error) bool to func(breaker Breaker, attempt uint, err error) bool

Compatible changes

strategy

• ErrorHandler: added
• CheckError: added
• NetworkError: added

Improvements

backoff

• Do: no run goroutine
• Fibonacci: performance

How to switch

• Provide a valid generator for jitters if you used nil before.
• Use Do or Go instead of Retry, Try, or TryContext.
  • Do, if action is interruptible by context.
  • Go, if not and you need latency guarantees.
• Close resources of BreakCloser manually.

v4.8.0...v5.0.0