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. 240

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

Wedge in FE (→GE,EE)

Editors' suggestion – no mark

..

We consider the wedge to be a mistake – it seems that it should have been placed two bars earlier.

category imprint: Editorial revisions

b. 240

composition: Op. 31, Scherzo in B♭ minor

b1-g2-b2 in A (→FCGE1, →FEEE)

b1-f2-b2 in GE2 (→GE3)

..

The version of the majority of the sources, the 3rd chord with g2, does not raise doubts as such. However, they arise when compared with analogous b. 108, in which, after the corrections performed in A, Chopin eventually wrote a chord featuring f2. Actually, the corrections probably concerned the issue of rhythm; however, they guarantee that the b1-f2-b2 chord does not contain a mistake and was intended by Chopin. What is more, had the corrections been performed simultaneously with the revision of the entire manuscript, this version would have been the last one written by Chopin. Taking into account the above observations as well as the fact that it seems highly unlikely that such an insignificant difference could have been intentionally left behind, we consider the version with f2 an equivalent variant. This is the only version that was introduced in GE2 (→GE3).
There is a similar situation in b. 691.

category imprint: Differences between sources; Editorial revisions

issues: GE revisions , Omitted correction of an analogous place

b. 240

composition: Op. 44, Polonaise in F♯ minor

 in GE1

No mark in FE (→EE) & GE2

Our variant suggestion

..

In the main text we suggest an optional ornament like in b. 181.

category imprint: Differences between sources

b. 240

composition: Op. 44, Polonaise in F♯ minor

Staccato dot in GE1

No mark in FE (→EE) & GE2

..

In the main text we include the staccato dot printed in GE after [A]. The mark was probably overlooked by the engraver of FE (→EE) or earlier, in the manuscript basis for that edition. The absence of the dot in GE2 is certainly the fault of the engraver of that edition.
There is a similar situation two bars later.

category imprint: Differences between sources

issues: Errors in GE

b. 240-241

composition: Op. 44, Polonaise in F♯ minor

    in GE1

No markings in FE (→EE)

   in GE2

..

As was the case with b. 181-182, the missing pedal markings in FE (→EE) suggest that Chopin added them to #A after [FC] had already been finished. The  mark of GE2 having been placed earlier is almost certainly an inaccuracy by the engraver – cf. the compliant version of both GE in b. 181-182.

category imprint: Differences between sources

issues: Inaccuracies in GE