Select: 
Category
All
Graphic ambiguousness
Interpretations within context
Differences between sources
Editorial revisions
Corrections & alterations
Source & stylistic information
Notation
All
Pitch
Rhythm
Slurs
Articulation, Accents, Hairpins
Verbal indications
Pedalling
Fingering
Ornaments
Shorthand & other
Importance
All
Important
Main


b. 221

composition: Op. 21, Concerto in F minor, Mvt III

Repeated octave in A (→GE)

Tied octave in FE (→EE)

..

The sustained F-f octave is the latest version, introduced by Chopin in the proofreading of FE (→EE).

category imprint: Differences between sources

b. 221

composition: Op. 16, Rondo in E♭ major

g in FE (→GE,EE)

e​​​​​​​ suggested by the editors

..

It seems unlikely that Chopin would have wanted to change here a fixed accompaniment scheme with E, e and B​​​​​​​ notes as the ostinato bass figure. Therefore, the g note featured in the sources as the 2nd quaver is almost certainly a typical Terzverschreibung mistake.

category imprint: Differences between sources

issues: Errors in FE , Terzverschreibung error , Errors repeated in GE , Errors repeated in EE

b. 221

composition: Op. 11, Concerto in E minor, Mvt I

..

The  raising d1 to d1, overlooked in FE, was added both in GE and EE.

category imprint: Interpretations within context; Differences between sources

issues: EE revisions , Errors in FE , GE revisions , Omission of current key accidentals

b. 221-222

composition: Op. 11, Concerto in E minor, Mvt I

..

In GE, the bars are separated with a double bar line, which was a routine procedure while changing the key signature. In the main text, we preserve the undoubtedly authentic notation of FE (→EE) with a single bar line – Chopin's autographs prove that the composer generally did not use double bar lines at the time of changing the key (cf. e.g. the Mazurka in C major, op. 24, no. 2, bar 56). 

category imprint: Differences between sources

issues: GE revisions

b. 221

composition: Op. 11, Concerto in E minor, Mvt III

Fingering written into FED

Fingering written into FEH

No fingering in FE (→GE)

Fontana's fingering in EE

..

In the main text, we include the entry in FED, whose authenticity is highly likely. The same digit – along a few more – is given also by FEH; in turn, EE has a different fingering in this part of the passage, maintaining the hand position from the 1st half of the bar.

category imprint: Differences between sources

issues: Annotations in teaching copies , EE revisions , Annotations in FED , Differences in fingering , Annotations in FEH