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. 144

composition: Op. 2, Variations, complete

Triad in A (→GEEE,FESB)

Sixth in FE

..

As in b. 136, in the main text we give a sixth, which Chopin introduced instead of a three-note chord while proofreading FE.

category imprint: Differences between sources; Corrections & alterations

issues: Accompaniment changes , Authentic corrections of FE

b. 144-147

composition: Op. 2, Variations, complete

..

In AsI these bars are marked as a repetition of b. 136-139 (similarly, b. 148-149 are a repetition of b. 140-141). Admittedly, repeat signs are neither at the beginning of b. 136 nor at the end of b. 143; however, the intended repetition is proven by the fact that b. 142-143 were written directly before b. 150-151. At the same time, the first pair of bars was encompassed with a 1. volta bracket, while the second pair with a 2. volta bracket.
For convenience sake, that is to be able to compare AsI with the other sources, in the content transcription we adjust the notation of AsI to the remaining sources by writing out repeated b. 136-141 as b. 144-149. 

category imprint: Differences between sources; Editorial revisions; Corrections & alterations; Source & stylistic information

b. 144-147

composition: Op. 2, Variations, complete

..

In AsI the alternative L.H. part is not written out in these bars – see b. 135-139.

category imprint: Differences between sources

b. 145

composition: Op. 24 No. 4, Mazurka in B♭ minor

The slur of A, literal reading

Contextual interpretation of the slur in A (→GEFEEE)

Alternative interpretation of the slur in  A

..

In A, the slur begins right after the 2nd quaver, so it is possible that it was meant to begin from the crotchet b flat1. Still, the most probable option is that it was intended to embrace the entire final phrase, and this is how it was interpreted in GE (→FEEE).

category imprint: Graphic ambiguousness

issues: Inaccurate slurs in A

b. 145

composition: Op. 38, Ballade in F major

in A (→EE) & GE

in GC

in bar 145 in FE

..

Hairpins in both GC and FE are inaccurate – a sign written with too much impetus in GC, and a  cut short by the line break in FE.

category imprint: Differences between sources

issues: Inaccuracies in FE