Short list

Changes in 0.2.0:

Drop PHP 7.0 support, Drop PHP 7.0 support #30;
Add typehint for $value param in Template::set(), Add Data typehing to Template::set() for $value parameter #36;
Rename constants to match PSR-2 convention, Rename constants to match PSR-2 convention #34;
Make enum classes with constants final, Make enum classes with constants finall #39 ;
Rename HeapStatistics methods to match PSR-2, Rename HeapStatistics methods to match PSR-2 convention #38;
Rename V8\Exception class and it methods, Rename V8\Exception class and it methods #33;
Add FunctionObject::getScriptId() method;
Remove no-data constants and use NULL instead, Remove constants that denotes no data and use NULL values instead #40;
Refactor ScriptOriginOptions to use bit field, Refactor ScriptOriginOptions to use bit field #42;
Remove redundant ScriptOrigin::is*() methods, Remove redundant Message::is* methods #61;
Add missed method to Value stub;
Fix improperly adjusted external allocated memory on weak callback call;
Add Proxy and Promise builtin support, Add missed essential builtin objects support #55;
Add support for regexp dotAll flag, Add support for regexp dotAll flag #54;
Move RegExpObject\Flags constants under RegExpObject, Move RegExpObject\Flags constants under RegExpObject #64;
Move CompileOptions constants under ScriptCompiler, Move CompileOptions constants under ScriptCompiler #65;
Add Isolate::MemoryPressureNotification() support, Add Isolate::MemoryPressureNotification() support #57;
Require libv8 >= 6.3.163;
Add StackFrame::isWasm(), Add missed StackFrame::isWasm() #53;
Get rid of CallbackInfo, Remove CallbackInfo #67;
Add immutable chains to ObjectTemplate, Add immutable chains to ObjectTemplate #58;
Add StartupData::warmUpSnapshotDataBlob(), Add StartupData::warmUpSnapshotDataBlob() #59;
Add missed JSON class support, Add missed JSON class support #56;
Add Message::getErrorLevel() method, Add Message::getErrorLevel() method #52;
Rename SymbolValue methods, Rename ambiguous methods to be more verbose #41;
Rename TryCatch methods, Rename ambiguous methods to be more verbose #41;
Add missed PrimitiveValue::value() abstract method;
Add Isolate::SetRAILMode(), Add Isolate::SetRAILMode() #60;
Fix improperly internally constructed RAILMode enum class, Add Isolate::SetRAILMode() #60.

Some changes

Drop PHP 7.0 support, #30

That's simple - see the linked issue for the reference. I really have no time support all PHP versions and what's more, I'd like to use new features from recent PHP version. Based on that 7.0 is soon to be EOL and extension is experimental, not supporting it is a wise choice in a long-term perspective.

Add `Data` typehint for `$value` param in `Template::set()`, #36

Internally there was Data type hint, so it was impossible to pass something different. This change is fully cosmetic.

Rename constants to match PSR-2 convention, #34

All constants now follow PSR-2 style and use no k prefix, which was a rudiment from V8 C++ API. Constant names uses UPPER_CAMEL_CASE instead of PascalCase or camelCase.

Before	After
`ConstructorBehavior::kThrow`	`ConstructorBehavior::THROW`
`ConstructorBehavior::kAllow`	`ConstructorBehavior::ALLOW`
`IntegrityLevel::kFrozen`	`IntegrityLevel::FROZEN`
`IntegrityLevel::kSealed`	`IntegrityLevel::SEALED`
`PropertyAttribute::None`	`PropertyAttribute::`
`PropertyAttribute::ReadOnly`	`PropertyAttribute::NONE`
`PropertyAttribute::DontEnum`	`PropertyAttribute::READ_ONLY`
`PropertyAttribute::DontDelete`	`PropertyAttribute::DONT_ENUM`
`PropertyHandlerFlags::kNone`	`PropertyHandlerFlags::NONE`
`PropertyHandlerFlags::kAllCanRead`	`PropertyHandlerFlags::ALL_CAN_READ`
`PropertyHandlerFlags::kNonMasking`	`PropertyHandlerFlags::NON_MASKING`
`PropertyHandlerFlags::kOnlyInterceptStrings`	`PropertyHandlerFlags::ONLY_INTERCEPT_STRINGS`
`KeyCollectionMode::kOwnOnly`	`KeyCollectionMode::OWN_ONLY`
`KeyCollectionMode::kIncludes`	`KeyCollectionMode::INCLUDE_S`
`IndexFilter::kIncludeIndices`	`IndexFilter::INCLUDE_INDICES`
`IndexFilter::kSkipIndices`	`IndexFilter::SKIP_INDICES`
`RegExpObject\Flags::kNone`	`RegExpObject\Flags::NONE`
`RegExpObject\Flags::kGlobal`	`RegExpObject\Flags::GLOBAL`
`RegExpObject\Flags::kIgnoreCase`	`RegExpObject\Flags::IGNORE_CASE`
`RegExpObject\Flags::kMultiline`	`RegExpObject\Flags::MULTILINE`
`RegExpObject\Flags::kSticky`	`RegExpObject\Flags::STICKY`
`RegExpObject\Flags::kUnicode`	`RegExpObject\Flags::UNICODE`
`ScriptCompiler\CompileOptions::kNoCompileOptions`	`ScriptCompiler\CompileOptions::NO_COMPILE_OPTIONS`
`ScriptCompiler\CompileOptions::kProduceParserCache`	`ScriptCompiler\CompileOptions::PRODUCE_PARSER_CACHE`
`ScriptCompiler\CompileOptions::kConsumeParserCache`	`ScriptCompiler\CompileOptions::CONSUME_PARSER_CACHE`
`ScriptCompiler\CompileOptions::kProduceCodeCache`	`ScriptCompiler\CompileOptions::PRODUCE_CODE_CACHE`
`ScriptCompiler\CompileOptions::kConsumeCodeCache`	`ScriptCompiler\CompileOptions::CONSUME_CODE_CACHE`
`StringValue::kMaxLength`	`StringValue::MAX_LENGTH`

NOTE: affected constants list is incomplete, as listing them is a

Make enum classes with constants final, #39

There is no big reason to inherit service classes that holds only constants. I don't think there is good reason to do that. If your code extends constants-only classes, please, alter it to adopt this change.

Rename `HeapStatistics` methods to match PSR-2, #38

Before	After
`HeapStatistics::total_heap_size()`	`HeapStatistics::getTotalHeapSize()`
`HeapStatistics::total_heap_size_executable()`	`HeapStatistics::getTotalHeapSizeExecutable()`
`HeapStatistics::total_physical_size()`	`HeapStatistics::getTotalPhysicalSize()`
`HeapStatistics::total_available_size()`	`HeapStatistics::getTotalAvailableSize()`
`HeapStatistics::used_heap_size()`	`HeapStatistics::getUsedHeapSize()`
`HeapStatistics::heap_size_limit()`	`HeapStatistics::getHeapSizeLimit()`
`HeapStatistics::malloced_memory()`	`HeapStatistics::getMallocedMemory()`
`HeapStatistics::peak_malloced_memory()`	`HeapStatistics::getPeakMallocedMemory()`
`HeapStatistics::does_zap_garbage()`	`HeapStatistics::doesZapGarbage()`

All other changes

All other changes could be tracked by looking into tests/001-verify_extension_entities.phpt file diff.

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