Small update

Since the reading order posted here has caught up with what I'm currently reading, it may take some time before I post a new part here advancing the chronology.

In the meantime, and since there's always room for improvement, I will create these Small update posts whenever appropriate, to notify of additions/editions to the already posted order.

The original posts will be updated in accordance, of course.

For this first post, I will add all the Marvel Holiday Special X-Men stories that I didn't include up until now. They are all optional reading.

[Part 02]

Vol. 08 - Rise of the Phoenix

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Amazing Spider-Man #161-162

Marvel Holiday Special 1991 (1st story) (optional)
X-Men #98-99

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[Part 06]

Vol. 83 - Legion Quest
...
Uncanny X-Men #319

Marvel Holiday Special 1994 (1st story) (optional)
X-Men v2 #39 (p. 1-13, 15-23)

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[Part 07]

Vol. 99 - Ghosts from the Past (Part 02) (optional)

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Cable #42 (p.4-22)

Marvel Holiday Special 1996 (5th story)

X-Man #24 (p. 20-21)

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[Part 10]

Vol. 171 - Marvel Team-Up: Golden Child (optional)

Marvel Team-Up v3 #1-6

Marvel Holiday Special 2004 (2nd story)

[Part 13]

Vol. 251 - Sisterhood
Uncanny X-Men #508-511

Marvel Holiday Spectacular 2009 (2nd story)

Marvel Holiday Magazine 2010 (12th story)

Uncanny X-Men #512

[Part 16]

Vol. 321 - Mutatis Mutandis

Marvel Holiday Special 2011 (2nd story)
Wolverine and the X-Men #5-8

...