0.4.0

• Add subnetting and supernetting helpers on IpNetwork
  • subnet(newPrefix: UInt)
  • subnetRelative(prefixDiff: UInt)
  • supernet(newPrefix: UInt)
  • supernetRelative(prefixDiff: UInt)
• Add fixture-backed JVM tests for subnetting and supernetting (subnetting.json, supernetting.json)
• Add additional fixture-backed JVM coverage:
  • overlaps_containment.json
  • python_oracle.json generated from Python stdlib ipaddress
  • set_operations.json (union collapse/covering, intersection, difference)
• Add Python-oracle fixture generator:
  • python-testgen/gen_python_oracle.py
• Add network set-operations on IpNetwork:
  • unionCollapse
  • unionCovering
  • intersection
  • difference
• Keep set-operation API surface explicit and unambiguous; no alias variants (union, spanningUnion, intersect, minus)
• Add range/relation APIs on IpNetwork:
  • toRange()
  • fromRange(start, end)
  • relationTo(other) with Relation enum (EQUAL, CONTAINS, WITHIN, ADJACENT, DISJOINT)
• Define canonical set-operation output contract (sorted, non-overlapping, maximally collapsed) and enforce it in operation results
• Add explicit runtime family guards for network operations/containment: mixed IPv4/IPv6 inputs now fail fast with IllegalArgumentException (no implicit cross-family coercion)
• Add randomized property-style JVM tests for set-operation invariants and range summarization roundtrips (IPv4 and IPv6)
• Add IpAddress.V4.LeadingPrefix for explicit bit-prefix modeling with:
  • UByte constructor (leadingPrefixLength, leadingPrefixValue)
  • signed-number constructor (Int, Int)
  • bit-string constructor (String, e.g. "110")
  • canonical bit-string rendering via toString()
• Clean up JVM fixture tests by removing noisy prints, tightening type handling to avoid broad unchecked-cast patterns, and renaming overlong test identifiers consistently
• Fix network flag semantics to use containment instead of exact-network equality:
  • isLoopback
  • isLinkLocal
  • isMulticast
  • isPrivate
  • IPv6 range flags (isGlobalUnicast, isUniqueLocal, isUniqueLocalLocallyAssigned, isIpV4Mapped, isIpV4Compatible, isDocumentation, isDiscardOnly, isReserved)
• Fix IPv6 reserved special ranges initialization (4000::/3, 6000::/3) to avoid invalid-network initialization errors
• Fix IpNetwork.contains(IpInterface) to also validate that the interface address is inside the network
• Fix addressSpace for /32 and /128 to avoid duplicate single-address emission
• Fix IpAddress.V6.toString(expanded = true) to emit fully padded 4-digit hextets
• Tighten IpAddress.V4.LeadingPrefix(Int, Int) validation to reject values outside 0..255 before conversion
• Add withSameFamily scopes for unknown-family IpAddress and IpNetwork values, exposing same-family arithmetic, bitwise, comparison, containment, overlap, adjacency, and merge operations, including network/address membership checks in both receiver directions.
• Add generic isSameFamily predicates for IpAddress and IpAddressAndPrefix.
• Fix generic IpAddress.isV4() / IpAddress.isV6() checks.
• Kotlin 2.4.0

0.3.1

Add hashCode() and equals() in IpInterface.

0.3.0

• Add methods in IpAddressAndPrefix interface for parsing ByteArray representing address and subnet mask in X509 IpAddressName
  • fromX509Octets
  • toX509Octets

0.2.0

• Revised generic type arguments
• Introduce CidrNumber optimized for CIDR operations
  • CidrNumber.V4 for IPv4
  • CidrNumber.V6 for IPv6
• CIDR math helpers on IP Addresses:
  • toCidrNumber to get numeric representation
  • plus
  • minus
  • shl
  • shr
  • and
  • or
  • xor
  • inv
• More properties:
  • hostMask
  • numberOfHostBits
  • lastAddress
  • firstAssignableHost
  • lastAssignableHost
  • assignableHostRange
  • addressSpace
  • lastAddress
  • overlaps
  • isSubnetOf
  • isSupernetOf
  • isAdjacentTo
  • boradcastAddress (IPv4 only)
• Fix native interop package

0.1.0

1. Data model:

• IP addresses, networks, netmasks and prefixes
• Type-safety: Never mix up IPv6 and IPv4!
• Generic properties (isLoopback, isLinkLocal, etc…)
• IPv4-specific properties (isPrivate/isPublic)
• IPv6-specific properties (isGlobalUnicast, isIpV4Mapped, and many more)

2. Parser
3. Encoder (including IPv6 canonicalization)
4. Masking
5. Containment Checks
6. Various ByteArray-level OPs