| Unicode版本 | 
最終碼位範圍[a] | 
碼位數 | 
L2 ID | 
WG2 ID | 
檔案
 | 
| 3.0 | 
U+31A0..31B7 | 
24 | 
L2/98-090 | 
N1713R (頁面存檔備份,存於網際網路檔案館) | 
Proposal to add 24 extended Bopomofo and 2 modifier letters for Minnan and Hakka, 1998-03-19
 | 
| L2/98-158 | 
 | 
Aliprand, Joan; Winkler, Arnold, Bopomofo Extensions, Draft Minutes – UTC #76 & NCITS Subgroup L2 #173 joint meeting, Tredyffrin, Pennsylvania, April 20-22, 1998, 1998-05-26
 | 
| L2/98-286 | 
N1703 (頁面存檔備份,存於網際網路檔案館) | 
Umamaheswaran, V. S.; Ksar, Mike, 8.25, Unconfirmed Meeting Minutes, WG 2 Meeting #34, Redmond, WA, USA; 1998-03-16--20, 1998-07-02
 | 
| L2/98-321 | 
N1905 (頁面存檔備份,存於網際網路檔案館) | 
Revised text of 10646-1/FPDAM 23, AMENDMENT 23: Bopomofo Extended and other characters, 1998-10-22
 | 
| L2/18-255 | 
N4980 (頁面存檔備份,存於網際網路檔案館) | 
Tung, Bobby; Ko, But; Wei, Selena, Proposal to Fix Glyphs in Bopomofo Extended Block and Encode one Bopomofo Letter, 2018-06-13
 | 
| 6.0 | 
U+31B8..31BA | 
3 | 
L2/09-049 | 
N3570 (頁面存檔備份,存於網際網路檔案館) | 
West, Andrew, Proposal to encode three Bopomofo letters for Hmu and Ge, 2009-01-25
 | 
| L2/09-003R | 
 | 
Moore, Lisa, B.15.15, UTC #118 / L2 #215 Minutes, 2009-02-12
 | 
| L2/09-234 | 
N3603 (pdf, doc (頁面存檔備份,存於網際網路檔案館)) | 
Umamaheswaran, V. S., M54.13f, Unconfirmed minutes of WG 2 meeting 54, 2009-07-08
 | 
| 13.0 | 
U+31BB | 
1 | 
L2/18-255 | 
N4980 (頁面存檔備份,存於網際網路檔案館) | 
Tung, Bobby; Ko, But; Wei, Selena, Proposal to Fix Glyphs in Bopomofo Extended Block and Encode one Bopomofo Letter, 2018-06-13
 | 
| L2/18-183 | 
 | 
Moore, Lisa, C.21, UTC #156 Minutes, 2018-11-20
 | 
 | 
N5020 (pdf, doc (頁面存檔備份,存於網際網路檔案館)) | 
Umamaheswaran, V. S., 10.3.16, Unconfirmed minutes of WG 2 meeting 67, 2019-01-11
 | 
| U+31BC..31BF | 
4 | 
L2/19-100 | 
 | 
Chan, Eiso, Preliminary proposal to encode four extended Bopomofo letters for Cantonese, 2019-04-08
 | 
| L2/19-173 | 
 | 
Anderson, Deborah;  et al, 18, Recommendations to UTC #159 April-May 2019 on Script Proposals, 2019-04-29
 | 
| L2/19-177R | 
N5052 (頁面存檔備份,存於網際網路檔案館) | 
Yang, Ben; Chan, Eiso, Proposal to encode Cantonese Bopomofo Characters, 2019-05-02
 | 
| L2/19-122 | 
 | 
Moore, Lisa, Consensus 159-C21, UTC #159 Minutes, 2019-05-08
 | 
 | 
N5122 (頁面存檔備份,存於網際網路檔案館) | 
M68.10 and M68.19, Unconfirmed minutes of WG 2 meeting 68, 2019-12-31
 | 
| 
 |