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13 lines
493 B
Markdown
13 lines
493 B
Markdown
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### New weak package
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The new [weak](/pkg/weak) package provides weak pointers.
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Weak pointers are a low-level primitive provided to enable the
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creation of memory-efficient structures, such as weak maps for
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associating values, canonicalization maps for anything not
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covered by package [unique](/pkg/unique), and various kinds
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of caches.
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For supporting these use-cases, this release also provides
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[runtime.AddCleanup](/pkg/runtime#AddCleanup) and
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[maphash.Comparable](/pkg/maphash#Comparable).
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