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-rw-r--r--Cargo.toml9
1 files changed, 9 insertions, 0 deletions
diff --git a/Cargo.toml b/Cargo.toml
index c5f8c99..e60b8d0 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -55,6 +55,15 @@ traits-preview = ["dep:digest"]
# The following features are mainly intended for testing and benchmarking, and
# they might change or disappear at any time without a major version bump.
+# It wasn't originally intended to expose "digest" as its own feature, but the
+# traits-preview feature above predated the "dep:" syntax in Cargo. Version
+# 1.5.2 of this crate started using "dep:" syntax, but that broke some callers
+# in the wild (https://solana.stackexchange.com/q/17787/29050). This feature
+# unbreaks those callers. When Cargo gains the ability to deprecate features,
+# this feature will be deprecated. Note that the relevant trait implementations
+# are still gated by "traits-preview".
+digest = ["dep:digest"]
+
# By default on x86_64, this crate uses Samuel Neves' hand-written assembly
# implementations for SSE4.1, AVX2, and AVX512. (These provide both the best
# runtime performance, and the fastest build times.) And by default on 32-bit