Author: Raimo Niskanen <raimo(at)erlang(dot)org>
Status: Active
Type: Process
Created: 31-May-2007

EEP 0: Index of Erlang Enhancement Proposals (EEPs)


The EEP contains the index of all Erlang Enhancement Proposals, known as EEPs. EEP numbers are assigned by the EEP Editor, and once assigned are never changed. The history of the EEP texts represent their historical record.

The textual format for an EEP is described in EEP 1, and EEP 33 is a template.

EEPs are discussed on the mailing list and accepted or rejected by the OTP team.


Numerical Index of EEPs
Status Num Title Owner
P 0 Index of Erlang Enhancement Proposals (EEPs) Raimo Niskanen
P 1 EEP Purpose and Guidelines Per Gustafsson
PF/R-33 2 Sample Plaintext PEP Template Per Gustafsson
PF/R-33 3 Sample reStructuredText EEP Template Per Gustafsson
SF/R12B-0 4 New BIFs for bit-level binaries (bit strings) Per Gustafsson
S 5 More Versatile Encapsulation with `export_to` Richard A. O'Keefe
SF/R12B-0 6 New BIFs for tuple and binary sizes Björn Gustavsson
S 7 Foreign Function Interface (FFI) Alceste Scalas
S 8 Types and function specifications Tobias Lindahl
S 9 Library for working with binaries Fredrik Svahn
S 10 Representing Unicode characters in Erlang Patrik Nyblom
SA/R12B-3u 11 Built in regular expressions in Erlang Patrik Nyblom
S 12 Extensions to comprehensions Richard A. O'Keefe
S 13 -enum declarations Richard A. O'Keefe
S 14 Guard clarification and extension Richard A. O'Keefe
S 15 Portable funs Richard A. O'Keefe
S 16 is_between/3 Richard A. O'Keefe
S 17 Fix andalso and orelse Richard A. O'Keefe
S 18 JSON bifs Richard A. O'Keefe
S 19 Comprehension multigenerators Richard A. O'Keefe
S 20 Split the atoms! Richard A. O'Keefe
S 21 Optional trailing commas for lists and tuples Richard A. O'Keefe
S 22 Range checking for binaries Richard A. O'Keefe
SF/R12B-4 23 Allow variables in `fun M:F/A` Richard A. O'Keefe
SF/R12B-5 24 Functions may be named using `F/N` in all module attributes Richard A. O'Keefe
S 25 Unnesting cases Richard A. O'Keefe
SA/R13A 26 Make andalso and orelse tail-recursive Björn Gustavsson
S 27 Multi-Parameter Typechecking BIFs James Hague
S 28 Optional leading semicolons for choices Richard A. O'Keefe
S 29 Abstract Patterns, Stage 1 Richard A. O'Keefe
SF/R13A/R14A 30 Maximum and Minimum Richard A. O'Keefe
SF/R14A 31 Binary manipulation and searching module Patrik Nyblom
S 32 Module-local process names Richard A. O'Keefe
P 33 Sample Markdown EEP Template Raimo Niskanen
S 34 Extended basic packet options for decode_packet Tony Rogvall
S 35 Binary string module(s) Patrik Nyblom
SF/R15B 36 Line numbers in exceptions Björn Gustavsson
SA 37 Funs with names Richard A. O'Keefe
S 38 -discontiguous directive Richard A. O'Keefe
S 39 Scoped Group Leaders Yurii Rashkovskii
S 40 A proposal for Unicode variable and atom names in Erlang Richard A. O'Keefe
S 41 Pseudo-assignment for Erlang Richard A. O'Keefe
S 42 setrlimit(2) analogue for Erlang Richard A. O'Keefe
S 43 Maps Björn-Egil Dahlberg
SA/19.0-we 44 Additional preprocessor directives Björn Gustavsson
SA/19.0 45 New macros for function name and arity Björn Gustavsson
S 46 B-trees: balanced search trees of order n Walter Weinmann
SF/21.0 47 Add syntax in try/catch to retrieve the stacktrace directly Björn Gustavsson
S 48 Documentation storage and format José Valim
S 49 Value-Based Error Handling Mechanisms Fred Hebert
S 50 Maps based set implementation José Valim
S 51 Underscore digit separator in numeric literals Sergey Prokhorov

EEP Status Legend
Tag Description
S Standards Track EEP
P Process EEP
A Accepted proposal
R Rejected proposal
W Withdrawn proposal
D Deferred proposal
F Final proposal
/R-33 Replaced by EEP 33
/R12B-0 Proposal is implemented in OTP release R12B-0
/R12B-3u Proposal is implemented in OTP release R12B-3, except for Unicode support according to EEP 10
/R12B-4 Proposal is implemented in OTP release R12B-4
/R12B-5 Proposal is implemented in OTP release R12B-5
/R13A Proposal is to be implemented in OTP release R13A
/R13A/R14A Proposal is implemented in OTP release R13A and R14A
/R14A Proposal is implemented in OTP release R14A
/R15B Proposal is implemented in OTP release R15B
/19.0-we Proposal's -warning and -error directives are accepted to be implemented in OTP release 19.0
/19.0 Proposal is to be implemented in OTP release 19.0
/21.0 Proposal is to be included in OTP release 21.0

EEP Owners
Author Email
Alceste Scalas <alceste(at)crs4(dot)it>
Björn Gustavsson <bjorn(at)erlang(dot)org>
Björn-Egil Dahlberg <egil(at)>
Fred Hebert <mononcqc(at)ferd(dot)ca>
Fredrik Svahn <Fredrik(dot)Svahn(at)gmail>
James Hague <james(dot)hague(at)gmail(dot)com>
José Valim <jose(dot)valim(at)gmail(dot)com>
Patrik Nyblom <pan(at)erlang(dot)org>
Per Gustafsson <pergu(at)it(dot)uu(dot)se>
Raimo Niskanen <raimo(at)erlang(dot)org>
Richard A. O'Keefe <ok(at)cs(dot)otago(dot)ac(dot)nz>
Sergey Prokhorov <seriy(dot)pr(at)gmail(dot)com>
Tobias Lindahl <tobias(dot)lindahl(at)it(dot)uu(dot)se>
Tony Rogvall <tony(at)rogvall(dot)se>
Walter Weinmann <>
Yurii Rashkovskii <yrashk(at)gmail(dot)com>


This document has been placed in the public domain.