2011-12-09: All textual commentaries for Autobiography of Mark Twain, Volume 1 supplied as 413-page PDF concatenation; they continue to be available in HTML

2011-10-14: Infrastructure added for displaying two or more published versions of a letter text (see e.g. UCCL 00340)

2011-09-16: Keyword-in-context (KWIC) result toggle added to Letters; works best with text-based searches, e.g. howells

2011-08-08: Corrected placement of some explanatory note markers throughout Autobiography of Mark Twain, Volume 1

2011-07-25: XTF core files upgraded to 3.0

2011-06-21: JavaScript bug fixed that impeded cross-reference links originating in the note pane; page anchors added to Huck and Tom among the Indians (1989) (formerly 1–261, 299–351; now 1–351) and Adventures of Huckleberry Finn (2003) (formerly 1–362, 622–54; now 1–834, 994–1117: we regret that "Emendations and Historical Collation" cannot be paginated due to its encoding)

2011-05-26: Corrections entered to Autobiography of Mark Twain, Volume 1 (2010) to match those applied to the printed edition

2011-05-16: Corrections to annotation entered for five letters, four of which now recognize Frank Fuller’s second wife, Mrs. Annie Fuller: UCCL 02768, 02785, 01041, 01071, 01107

2010-11-29: Images Catalog launched with small initial set of scanned photographs, search feature, browsable facets, and sortable and gallery views

2010-10-18: Autobiography of Mark Twain, Volume 1 released, containing all materials in the printed book published by UC Press, plus approximately 200 pages’ worth of textual apparatus, as well as a color scan of the 23 Dec 1905 Harper’s Weekly special issue (accompanying the “Speech at the Seventieth Birthday Dinner” appendix)

2010-10-15: Twenty-eight new letter texts 1872–75 released under the aggregate title Newly Recovered Letters, Part 1 for a total of fifty-four, listed chronologically here—UCCL 12774, 12657, 12784, 11981, 13094, 12773, 12791, 12655, 12311, 12163, 12436, 12698, 12793, 12794, 12795, 12797, 12798, 12800, 12805, 12806, 12807, 12808, 12816, 13001, 12799, 12741, 13107, 12878; note: extant annotation for related letters may be affected but has not been revised at this time

2010-10-01: Letters catalog changes: serials and monographs added to catalogs under the Printed Version facet; to improve searchability, facet labels with "&" use "and"; letter IDs may be retrieved with or without entry of their UCCL/UCLC prefix; in result and detail views, compound letter dates display in full

2010-08-16: Twenty-six new letter texts 1862–71 released under the aggregate title Newly Recovered Letters, Part 1 and listed chronologically here—UCCL 12722, 11953, 12725, 12724, 12726, 10494, 11419, 12104, 12467, 12761, 12762, 12763, 12765, 12766, 12767, 12486, 12768 (with UCLC 50387), 12769, 12355, 13009, 12771, 12094, 12650, 12952, 12772, 12656; note: extant annotation for related letters may be affected but has not been revised at this time

2010-08-12: 361 Letters catalog entries added (102 incoming, 259 outgoing); widespread catalog corrections released, including refinements to date written, expanded addressee names, newly identified senders and addressees

2010-08-01: Letter text replaced for UCCL 00340, which is released under the aggregate title Newly Recovered Letters, Part 1; note: extant annotation for related letters may be affected but has not been revised at this time

2010-07-28: Video clip commissioned by UC Press embedded in User Guide

2010-05-12: Corrections to paragraph indention in more than 200 letters, primarily 1876–1880

2010-03-28: Minor changes to static pages, including the home page

2009-10-05: Autobiography sample added; biography of Patrick McAleer corrected

2009-05-01: UC Press imprint and MLA/CSE seal added

2009-04-02: Minor corrections to layout (inline salutations) entered for 36 letters, 1853–1880; recipient identified for UCCL 12963

2008-12-03: Minor corrections entered for Adventures of Huckleberry Finn (i.e., not in the 2003 edition): explanatory notes to 1.13 and 357.7–8; in Introduction, pp. 738–40, nn. 225–30 and p. 773, n. 337

2009-02-26: New letter text—UCCL 01062; facsimile view added for UCCL 12720

2009-02-24: Illustrative images added to ten letters 1876–1880 (CU-MARK and courtesy CLjC, MoHH, TxU-HU, ViU): UCCL 01590, 01777, 01792, 01794, 01862, 09288, 11304, 11805, 12465, 12477

2009-02-05: Minor corrections to text, annotation, and/or apparatus entered for 97 letters; also included: UCCL 01489's enclosure and an illustrative image for UCCL 11304 (courtesy KyHi)

2009-01-20: Four new letter texts—UCCL 13079, 13081, 13093, 13105

2008-10-29: Annotation amended for 6 Feb 1870 to Bowen, to add cross-reference to Huck Finn and Tom Sawyer among the Indians