v1.5.0

Storage

• Ephemeral nodes are no-longer written for any tree by default (and have not been read since the v1.4.0 release), the corresponding --tree_ids_with_no_ephemeral_nodes flag is now deprecated (and will be removed in a future release).

Cleanup

• Format code according to go1.19rc2 by @mhutchinson in #2785
• Delete merkle package, use github.com/transparency-dev/merkle instead.
• #2792: Fixed order-dependent unit test.

Misc

• Fix order-dependent test by @hickford in #2792

Dependency updates

• Updated golangci-lint to v1.47.3 (developers should update to this version) by @mhutchinson in #2791
• Bump google.golang.org/api from 0.87.0 to 0.88.0 by @dependabot in #2783
• Bump cloud.google.com/go/spanner from 1.35.0 to 1.36.0 by @dependabot in #2784
• Bump google.golang.org/api from 0.88.0 to 0.90.0 by @dependabot in #2789
• Bump golang.org/x/tools from 0.1.11 to 0.1.12 by @dependabot in #2790
• Bump google.golang.org/protobuf from 1.28.0 to 1.28.1 by @dependabot in #2788
• Bump google.golang.org/api from 0.90.0 to 0.91.0 by @dependabot in #2796
• Bump github.com/prometheus/client_golang from 1.12.2 to 1.13.0 by @dependabot in #2795
• Bump github.com/fullstorydev/grpcurl from 1.8.6 to 1.8.7 by @dependabot in #2794
• Bump google.golang.org/api from 0.91.0 to 0.92.0 by @dependabot in #2798