DIPs

ID	Title	Status	Description
DIP1	Template DIP	Draft	This is a DIP template that can be used as a model to start a new proposal.
DIP2	Const code bloat	Approved	proposed solution for bug 1961.
DIP3	Remove inheritance protection	Approved	non-public inheritance in a single inheritance language that has a single root object hierarchy makes little sense.
DIP4	Properties	Superseded by DIP6	an alternate usage/definition syntax for properties.
DIP5	Properties 2	Superseded by DIP6	a variant of DIP4.
DIP6	Annotations	Approved	extend the D programming language with annotations.
DIP7	Operator overloading	Approved	Revamped operator overloading.
DIP8	Improving Runtime Type Info	Draft	Templating RTTI.
DIP9	Redo toString API	Draft	Replace inefficient aggregate toString API with efficient delegate-based version that supports formatting.
DIP10	Qualified constructors and destructors for structs	Draft
DIP11	Automatic downloading of imports	Draft	Support automatically downloading imported files via new import path specifications or pragmas.
DIP12	C API Headers	Approved	Collection of D headers for common C libraries.
DIP13	Import path binding	Draft	Allow to bind an import path to a package.
DIP14	Import path binding in source code	Draft	Allow to bind an import path to a package from within sources.
DIP15	Import of packages	Superseded by DIP37	Improve imports of packages with submodules.
DIP16	Transparently substitute module with package	Superseded by DIP37
DIP17	Sane volatile statement	Superseded by DIP20
DIP18	Non-GC Threads	Draft
DIP20	Volatile read/write intrinsics	Implemented	Intrinsics to perform C-style volatile loads/stores from/to memory.
DIP21	Fixing property	Draft
DIP22	Private symbol (in)visibility	Draft	Modification of private & Co symbol rules to reduce name clashes. Add internal linkage storage class.
DIP23	Fixing property redux	Draft	Initial
DIP24	Fixing properties and optional parens.	Draft	Fixing properties and optional parens. Only those. In a general and straightforward way. (counter proposal to DIP23)
DIP25	Sealed references	Implemented 2.067
DIP26	Properties the other way round	Draft
DIP27	Function definition	Draft
DIP28	Property definition	Draft
DIP29	Unique pointers	Draft	Unique pointers can be implicitly cast to/from immutable and shared.
DIP30	Delegate definition	Draft
DIP31	Defined compile time paradox resolution	Draft
DIP32	Uniform tuple syntax	Draft
DIP33	A standard exception hierarchy	Draft
DIP34	Static array literals	Draft
DIP35	Sealed References Amendment	Draft
DIP36	Rvalue References	Rejected
DIP37	Importing Packages as if They Were Modules	Implemented	Allow for packages to be imported as if they were modules by providing a package.d file.
DIP38	Safe references without runtime checks	Draft
DIP39	Safe rvalue references: backwards compatible, safe against ref/nonref code evolution, compatible with UFCS and DIP38.	Draft
DIP40	Template parameter deduction for constructors.	Draft
DIP41	dmd/rdmd command line overhaul.	Draft
DIP42	Support enum E(T) = expression; for manifest constants	Implemented
DIP43	D/Objective-C	Draft	Adds language extensions to make D ABI compatible with Objective-C.
DIP44	scope(this)	Draft	Extends scope guards to class / struct lifetime.
DIP45	making export an attribute	Draft	Turn export into an attribute and fix various shortcomings of its current implementation.
DIP46	region based storage allocation	Draft	Library addition to GC to allow for region based allocation strategies
DIP47	Outline Member Functions of Aggregates	Draft	Allow class/struct member function definitions to be placed outside of the class/struct declaration.
DIP48	Interface specifications for aggregate types	Draft
DIP49	Define qualified postblit	Draft	Fix D2 type-system hole.
DIP50	AST Macros	Draft	Abstract Syntax Tree macros. A general solution for language extensions.
DIP51	not-virtual-by-default	Draft	Change the behaviour of class methods so they are not virtual by default.
DIP52	Implicit conversions	Draft	Add more implicit conversion options for user-defined types.
DIP53	Qualified constructor revisited	Draft	Make qualified constructor definition more simple and understandable.
DIP54	Revamp of Phobos tuple types	Draft	Address frequent informational confusion around std.typetuple & friends, initiate transition to std.meta.* package
DIP55	Access Data Items In Ancestor Stack Frames	Draft	Support for *caller pointer in functions and adding class features to functions
DIP56	Provide Pragma to control function inlining	Implemented	Add pragma(inline,true); and pragma(inline,false);
DIP57	static foreach	Draft
DIP58	Make ".." a binary operator	Draft
DIP59	??	Draft
DIP60	Add @nogc function attribute	Implemented
DIP61	Add namespace scopes to support calling external C++ functions in C++ namespaces	Implemented
DIP62	Volatile type qualifier for unoptimizable variables in embedded programming	Rejected
DIP63	Operator overloading for raw templates	Draft
DIP64	Attribute Cleanup	Draft
DIP65	Exception handling syntax cleanup	Rejected
DIP66	(Multiple) alias this	Conditionally Approved
DIP67	Associative Ranges	Rejected
DIP68	Add @nogc attribute on types	Draft
DIP69	Implement scope for escape proof references	Draft
DIP70	@api/extern(noinfer) attribute	Draft
DIP71	'noscope' and 'out!param' attributes	Draft
DIP72	Provide a Uniform Compiler Info Syntax	Draft
DIP73	D Drafting Library	Draft
DIP74	Reference Counted Class Objects	Draft
DIP75	Release Process	Approved experimentally for 2.068
DIP76	Autodecode should not throw	Draft	Like std.utf.byDchar, it should emit Replacement Character instead
DIP77	Fix Unsafe RC Pass By Ref	Draft	Fix memory safety issue in DIP25
DIP78	AST Macros Lite	Rejected	Abstract Syntax Tree macros without syntax extensions in the language.
DIP79	Negation of attributes	Draft	Negation of attributes without the need for new keywords.
DIP80	Phobos additions	Draft	Additions that would make phobos even more useful.
DIP81	Writing files at compile time	Draft
DIP82	static unittest blocks	Draft	Allow for unittest blocks to be declared inside of templates which are compiled and run exactly once rather than once per instantiation.
DIP83	Configurable Assert Diagnostics	Draft	Allow for assert's to do pretty printing of its failing expression. Printing is configurable via specific sets of (template) function overloads.
DIP84	Static Inheritance	Draft	Express intent to the compiler that a user-defined type conforms to a static interface.
DIP85	Lazy initialization of const members	Draft	Allow limited mutation of const objects, ensuring the mutation is not observable by external code.
DIP86	"deprecated" attribute/storage class consistency	Draft	Allow "deprecated ( stringLiteral )" to act as a storage class.
DIP87	Enhanced foreign-language binding	Draft	Improve extern() to be more generic and support binding symbols that share a name with a D keyword.
DIP88	Named Parameters	Draft	Allow specifying named function parameters with `arg:`

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