[dependabot]

Updated IPNetwork2 from 4.3.0 to 5.0.1.

Release notes

Sourced from IPNetwork2's releases.

5.0.1

Fixes

Release packaging fix for 5.0.0. No library code changes: the IPNetwork2 package is functionally identical to 5.0.0 and keeps AssemblyVersion 5.0.0.0, so upgrading needs no recompilation.

• The 5.0.0 native binaries for osx-arm64 and linux-arm64 and the Homebrew formula were not published: the ConsoleApplication lock file carried package hashes from a local SDK feed that did not match nuget.org (NU1403). The lock file is regenerated from nuget.org, and local restores now ignore that feed (DisableImplicitLibraryPacksFolder).

See 5.0.0 for the thread-safety changes and breaking changes of the 5.x line.

Full changelog: lduchosal/ipnetwork@5.0.0...5.0.1

5.0.0

Highlights

IPNetwork2 is safe to share between threads

The address, family and CIDR now live in one immutable snapshot behind a single reference. Assigning Value replaces the whole network in one store, so a concurrent reader always observes a network that was actually assigned, never a mix of the old and the new one. Every single call (ToString, Contains, CompareTo, Network, Broadcast, FirstUsable, LastUsable, Usable, WildcardMask, ...) reports one coherent network.

The memoized broadcast address and hash code live on that snapshot too, so they are invalidated together with the network they describe.

Shared blocks can no longer be rewritten

The IANA_* blocks and the UniqueLocalAddress ULA prefixes used to hand out process-wide instances. Since Value is publicly settable, any caller could change what the library considers reserved or ULA. They now return a copy that shares the immutable snapshot.

Collection fixes

• IPNetworkCollection hands out an enumerator of its own per GetEnumerator() call. A second, nested or concurrent enumeration no longer disturbs another one.
• IPNetworkCollection and IPAddressCollection reject negative indexes.

Breaking changes

• GetHashCode follows Value, as the Equals/GetHashCode contract requires. A network mutated after being added to a Dictionary or a HashSet can no longer be found there.
• UniqueLocalAddress.UlaLocallyAssigned, UlaCentrallyAssigned and UlaRange are properties instead of static readonly fields. Source compatible, but code compiled against 4.x must be recompiled.
• IANA_* and the ULA properties return a new instance on every call, so ReferenceEquals between two calls no longer holds. Use Equals.
• AssemblyVersion is now 5.0.0.0 (it had been left at 3.2.0.0).

Full changelog: lduchosal/ipnetwork@4.3.0...5.0.0

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