Setup for new release branch (#1130)

* Bump version number

* Update version table

* Revise README

* Add new release branch to Dependabot

.github/dependabot.yml

@@ -9,3 +9,15 @@ updates:
     directory: "/"
     schedule:
       interval: "weekly"
+
+  - package-ecosystem: "cargo"
+    directory: "/"
+    schedule:
+      interval: "weekly"
+    target-branch: release/0.16
+
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "weekly"
+    target-branch: release/0.16

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "prio"
-version = "0.16.7"
+version = "0.17.0-alpha.0"
 authors = ["Josh Aas <[email protected]>", "Tim Geoghegan <[email protected]>", "Christopher Patton <[email protected]", "Karl Tarbe <[email protected]>"]
 edition = "2021"
 exclude = ["/supply-chain"]

README.md

@@ -11,22 +11,22 @@ and Scalable Computation of Aggregate Statistics.
 
 ## Exposure Notifications Private Analytics
 
-This crate was used in the [Exposure Notifications Private Analytics][enpa]
-system. This is referred to in various places as Prio v2. See
+Prior versions of this crate were used in the [Exposure Notifications Private
+Analytics][enpa] system. This is referred to in various places as Prio v2. See
 [`prio-server`][prio-server] or the [ENPA whitepaper][enpa-whitepaper] for more
 details.
 
 ## Verifiable Distributed Aggregation Function
 
-This crate also implements a [Verifiable Distributed Aggregation Function
+This crate implements a [Verifiable Distributed Aggregation Function
 (VDAF)][vdaf] called "Prio3", implemented in the `vdaf` module, allowing Prio to
 be used in the [Distributed Aggregation Protocol][dap] protocol being developed
 in the PPM working group at the IETF. This support is still evolving along with
 the DAP and VDAF specifications.
 
 ### Draft versions and release branches
 
-The `main` branch is under continuous development and will usually be partway between VDAF drafts.
+The `main` branch is under continuous development and will sometimes be partway between VDAF drafts.
 libprio uses stable release branches to maintain implementations of different VDAF draft versions.
 Crate `prio` version `x.y.z` is released from a corresponding `release/x.y` branch. We try to
 maintain [Rust SemVer][semver] compatibility, meaning that API breaks only happen on minor version
@@ -42,7 +42,8 @@ increases (e.g., 0.10 to 0.11).
 | 0.13 | `release/0.13` | [`draft-irtf-cfrg-vdaf-06`][vdaf-06] | [`draft-ietf-ppm-dap-05`][dap-05] | Yes | Unmaintained |
 | 0.14 | `release/0.14` | [`draft-irtf-cfrg-vdaf-06`][vdaf-06] | [`draft-ietf-ppm-dap-05`][dap-05] | Yes | Unmaintained |
 | 0.15 | `release/0.15` | [`draft-irtf-cfrg-vdaf-07`][vdaf-07] | [`draft-ietf-ppm-dap-07`][dap-07] | Yes | Unmaintained as of June 24, 2024 |
-| 0.16 | `main` | [`draft-irtf-cfrg-vdaf-08`][vdaf-08] | [`draft-ietf-ppm-dap-09`][dap-09] | Yes | Supported |
+| 0.16 | `release/0.16` | [`draft-irtf-cfrg-vdaf-08`][vdaf-08] | [`draft-ietf-ppm-dap-09`][dap-09] | Yes | Supported |
+| 0.17 | `main` | [`draft-irtf-cfrg-vdaf-13`][vdaf-13] | [`draft-ietf-ppm-dap-13`][dap-13] | [No](https://github.com/divviup/libprio-rs/issues/1122) | Supported |
 
 [vdaf-01]: https://datatracker.ietf.org/doc/draft-irtf-cfrg-vdaf/01/
 [vdaf-03]: https://datatracker.ietf.org/doc/draft-irtf-cfrg-vdaf/03/
@@ -51,13 +52,15 @@ increases (e.g., 0.10 to 0.11).
 [vdaf-06]: https://datatracker.ietf.org/doc/draft-irtf-cfrg-vdaf/06/
 [vdaf-07]: https://datatracker.ietf.org/doc/draft-irtf-cfrg-vdaf/07/
 [vdaf-08]: https://datatracker.ietf.org/doc/draft-irtf-cfrg-vdaf/08/
+[vdaf-13]: https://datatracker.ietf.org/doc/draft-irtf-cfrg-vdaf/13/
 [dap-01]: https://datatracker.ietf.org/doc/draft-ietf-ppm-dap/01/
 [dap-02]: https://datatracker.ietf.org/doc/draft-ietf-ppm-dap/02/
 [dap-03]: https://datatracker.ietf.org/doc/draft-ietf-ppm-dap/03/
 [dap-04]: https://datatracker.ietf.org/doc/draft-ietf-ppm-dap/04/
 [dap-05]: https://datatracker.ietf.org/doc/draft-ietf-ppm-dap/05/
 [dap-07]: https://datatracker.ietf.org/doc/draft-ietf-ppm-dap/07/
 [dap-09]: https://datatracker.ietf.org/doc/draft-ietf-ppm-dap/09/
+[dap-13]: https://datatracker.ietf.org/doc/draft-ietf-ppm-dap/13/
 [enpa]: https://www.abetterinternet.org/post/prio-services-for-covid-en/
 [enpa-whitepaper]: https://covid19-static.cdn-apple.com/applications/covid19/current/static/contact-tracing/pdf/ENPA_White_Paper.pdf
 [prio-server]: https://github.com/divviup/prio-server